LT3060 Series 45V VIN , Micropower, Low Noise, 100mA Low Dropout, Linear Regulator Description Features n n n n n n n n n n n n n n Input Voltage Range: 1.6V to 45V Output Current: 100mA Quiescent Current: 40A Dropout Voltage: 300mV Low Noise: 30VRMS (10Hz to 100kHz) Adjustable Output: VREF = 600mV Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V, 15V Output Tolerance: 2% Over Line, Load and Temperature Single Capacitor Soft-Starts Reference and Lowers Output Noise Shutdown Current: < 1A Reverse Battery Protection Current Limit Foldback Protection Thermal Limit Protection 8-Lead 2mm x 2mm x 0.75mm DFN and 8-Lead ThinSOT TM Packages Applications n n n n n Battery-Powered Systems Automotive Power Supplies Industrial Power Supplies Avionic Power Supplies Portable Instruments The LT(R)3060 series are micropower, low dropout voltage (LDO) linear regulators that operate over a 1.6V to 45V input supply range. The devices supply 100mA of output current with a typical dropout voltage of 300mV. A single external capacitor provides programmable low noise reference performance and output soft-start functionality. The LT3060's quiescent current is merely 40A and provides fast transient response with a minimum 2.2F output capacitor. In shutdown, quiescent current is less than 1A and the reference soft-start capacitor is reset. The LT3060 regulators optimize stability and transient response with low ESR, ceramic output capacitors. The regulators do not require the addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, reverse-output protection, reverse-current protection, current limit with foldback and thermal shutdown. The LT3060 series are available in fixed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V and 15V, and as an adjustable voltage regulator with an output voltage range from the 600mV reference to 44.5V. The LT3060 regulators are offered in the thermally enhanced 8-lead TSOT-23 and 8-lead (2mm x 2mm x 0.75mm) DFN packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical Application Dropout Voltage 350 2.5V Low Noise Regulator VIN 3V TO 45V 1F VOUT 2.5V AT 100mA 30VRMS NOISE OUT CFF 10nF LT3060-2.5 SHDN 10F ADJ GND REF/BYP 10nF DROPOUT VOLTAGE (mV) IN TJ = 25C 300 250 200 150 100 50 3060 TA01 0 0 10 20 30 40 50 60 70 80 90 100 OUTPUT CURRENT (mA) 3060 TA02 3060fc For more information www.linear.com/LT3060 1 LT3060 Series Absolute Maximum Ratings (Note 1) IN Pin Voltage......................................................... 50V OUT Pin Voltage...................................................... 50V Input-to-Output Differential Voltage (Note 2).......... 50V ADJ Pin Voltage...................................................... 50V SHDN Pin Voltage................................................... 50V REF/BYP Pin Voltage........................................ - 0.3V, 1V Output Short-Circuit Duration........................... Indefinite Operating Junction Temperature (Notes 3, 5, 13) E-, I-Grades........................................- 40C to 125C MP-Grade........................................... -55C to 150C H-Grade.............................................. -40C to 150C Storage Temperature Range...................- 65C to 150C Lead Temperature (TS8 Soldering, 10 sec)............ 300C Pin Configuration TOP VIEW ADJ 2 OUT 3 TOP VIEW 8 GND REF/BYP 1 9 GND OUT 4 SHDN 1 GND 2 GND 3 GND 4 7 SHDN 6 IN 5 IN 8 REF/BYP 7 ADJ 6 OUT 5 IN TS8 PACKAGE 8-LEAD PLASTIC TSOT-23 DC PACKAGE 8-LEAD (2mm x 2mm) PLASTIC DFN TJMAX = 125C, JA = 48C/W TO 60C/W*, JC = 20C/W EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB TJMAX = 150C, JA = 57C/W TO 67C/W*, JC = 25C/W * SEE APPLICATIONS INFORMATION SECTION order information LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3060EDC#PBF LT3060EDC#TRPBF LDTD 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC#PBF LT3060IDC#TRPBF LDTD 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060EDC-1.2#PBF LT3060EDC-1.2#TRPBF LFVT 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC-1.2#PBF LT3060IDC-1.2#TRPBF LFVT 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060EDC-1.5#PBF LT3060EDC-1.5#TRPBF LFVV 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC-1.5#PBF LT3060IDC-1.5#TRPBF LFVV 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060EDC-1.8#PBF LT3060EDC-1.8#TRPBF LFVW 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC-1.8#PBF LT3060IDC-1.8#TRPBF LFVW 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060EDC-2.5#PBF LT3060EDC-2.5#TRPBF LFVX 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC-2.5#PBF LT3060IDC-2.5#TRPBF LFVX 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060EDC-3.3#PBF LT3060EDC-3.3#TRPBF LFVY 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC-3.3#PBF LT3060IDC-3.3#TRPBF LFVY 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060EDC-5#PBF LT3060EDC-5#TRPBF LFVZ 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC-5#PBF LT3060IDC-5#TRPBF LFVZ 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060EDC-15#PBF LT3060EDC-15#TRPBF LGSK 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C LT3060IDC-15#PBF LT3060IDC-15#TRPBF LGSK 8-Lead (2mm x 2mm) Plastic DFN -40C to 125C 3060fc 2 For more information www.linear.com/LT3060 LT3060 Series order information LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3060ETS8#PBF LT3060ETS8#TRPBF LTDTF 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8#PBF LT3060ITS8#TRPBF LTDTF 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8#PBF LT3060MPTS8#TRPBF LTDTF 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8#PBF LT3060HTS8#TRPBF LTDTF 8-Lead Plastic ThinSOT -40C to 150C LT3060ETS8-1.2#PBF LT3060ETS8-1.2#TRPBF LTFWB 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8-1.2#PBF LT3060ITS8-1.2#TRPBF LTFWB 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8-1.2#PBF LT3060MPTS8-1.2#TRPBF LTFWB 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8-1.2#PBF LT3060HTS8-1.2#TRPBF LTFWB 8-Lead Plastic ThinSOT -40C to 150C LT3060ETS8-1.5#PBF LT3060ETS8-1.5#TRPBF LTFWC 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8-1.5#PBF LT3060ITS8-1.5#TRPBF LTFWC 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8-1.5#PBF LT3060MPTS8-1.5#TRPBF LTFWC 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8-1.5#PBF LT3060HTS8-1.5#TRPBF LTFWC 8-Lead Plastic ThinSOT -40C to 150C LT3060ETS8-1.8#PBF LT3060ETS8-1.8#TRPBF LTFWD 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8-1.8#PBF LT3060ITS8-1.8#TRPBF LTFWD 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8-1.8#PBF LT3060MPTS8-1.8#TRPBF LTFWD 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8-1.8#PBF LT3060HTS8-1.8#TRPBF LTFWD 8-Lead Plastic ThinSOT -40C to 150C LT3060ETS8-2.5#PBF LT3060ETS8-2.5#TRPBF LTFWF 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8-2.5#PBF LT3060ITS8-2.5#TRPBF LTFWF 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8-2.5#PBF LT3060MPTS8-2.5#TRPBF LTFWF 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8-2.5#PBF LT3060HTS8-2.5#TRPBF LTFWF 8-Lead Plastic ThinSOT -40C to 150C LT3060ETS8-3.3#PBF LT3060ETS8-3.3#TRPBF LTFWG 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8-3.3#PBF LT3060ITS8-3.3#TRPBF LTFWG 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8-3.3#PBF LT3060MPTS8-3.3#TRPBF LTFWG 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8-3.3#PBF LT3060HTS8-3.3#TRPBF LTFWG 8-Lead Plastic ThinSOT -40C to 150C LT3060ETS8-5#PBF LT3060ETS8-5#TRPBF LTFWH 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8-5#PBF LT3060ITS8-5#TRPBF LTFWH 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8-5#PBF LT3060MPTS8-5#TRPBF LTFWH 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8-5#PBF LT3060HTS8-5#TRPBF LTFWH 8-Lead Plastic ThinSOT -40C to 150C LT3060ETS8-15#PBF LT3060ETS8-15#TRPBF LTGSM 8-Lead Plastic ThinSOT -40C to 125C LT3060ITS8-15#PBF LT3060ITS8-15#TRPBF LTGSM 8-Lead Plastic ThinSOT -40C to 125C LT3060MPTS8-15#PBF LT3060MPTS8-15#TRPBF LTGSM 8-Lead Plastic ThinSOT -55C to 150C LT3060HTS8-15#PBF LT3060HTS8-15#TRPBF LTGSM 8-Lead Plastic ThinSOT -40C to 150C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on nonstandard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ 3060fc For more information www.linear.com/LT3060 3 LT3060 Series Electrical Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. (Note 3) PARAMETER Minimum Input Voltage (Notes 4, 12) Regulated Output Voltage (Note 5) CONDITIONS ILOAD = 100mA MIN TYP 1.6 MAX 2.1 UNITS V l LT3060-1.2: VIN = 2.1V, ILOAD = 1mA 2.1V < VIN < 45V, 1mA < ILOAD < 100mA 2.1V < VIN < 45V, 1mA < ILOAD < 100mA (E-, I-Grades) (MP-, H-Grades) l l 1.188 1.176 1.170 1.2 1.2 1.2 1.212 1.224 1.224 V V V LT3060-1.5: VIN = 2.1V, ILOAD = 1mA 2.1V < VIN < 45V, 1mA < ILOAD < 100mA 2.1V < VIN < 45V, 1mA < ILOAD < 100mA (E-, I-Grades) (MP-, H-Grades) l l 1.485 1.470 1.463 1.5 1.5 1.5 1.515 1.530 1.530 V V V LT3060-1.8: VIN = 2.35V, ILOAD = 1mA 2.35V < VIN < 45V, 1mA < ILOAD < 100mA (E-, I-Grades) 2.35V < VIN < 45V, 1mA < ILOAD < 100mA (MP-, H-Grades) l l 1.782 1.764 1.755 1.8 1.8 1.8 1.818 1.836 1.836 V V V LT3060-2.5: VIN = 3.05V, ILOAD = 1mA 3.05V < VIN < 45V, 1mA < ILOAD < 100mA (E-, I-Grades) 3.05V < VIN < 45V, 1mA < ILOAD < 100mA (MP-, H-Grades) l l 2.475 2.450 2.438 2.5 2.5 2.5 2.525 2.550 2.550 V V V LT3060-3.3: VIN = 3.85V, ILOAD = 1mA 3.85V < VIN < 45V, 1mA < ILOAD < 100mA (E-, I-Grades) 3.85V < VIN < 45V, 1mA < ILOAD < 100mA (MP-, H-Grades) l l 3.267 3.234 3.218 3.3 3.3 3.3 3.333 3.366 3.366 V V V VIN = 5.55V, ILOAD = 1mA 5.55V < VIN < 45V, 1mA < ILOAD < 100mA (E-, I-Grades) 5.55V < VIN < 45V, 1mA < ILOAD < 100mA (MP-, H-Grades) l l 4.950 4.900 4.875 5 5 5 5.050 5.100 5.100 V V V LT3060-15: VIN = 15.55V, ILOAD = 1mA 15.55V < VIN < 45V, 1mA < ILOAD < 100mA (E-, I-Grades) 15.55V < VIN < 45V, 1mA < ILOAD < 100mA (MP-, H-Grades) l l 14.85 14.70 14.63 15 15 15 15.15 15.30 15.30 V V V (E-, I-Grades) (MP-, H-Grades) l l 594 588 585 600 600 600 0.9 606 612 612 3.5 7 mV mV mV mV LT3060-5: ADJ Pin Voltage (Notes 4, 5) LT3060: Line Regulation LT3060-1.2: VIN = 2.1V to 45V, ILOAD = 1mA VIN = 2.1V to 45V, ILOAD = 1mA (E-, I-Grades) (MP-, H-Grades) l l LT3060-1.5: VIN = 2.1V to 45V, ILOAD = 1mA VIN = 2.1V to 45V, ILOAD = 1mA (E-, I-Grades) (MP-, H-Grades) l l 1 4.2 8 mV LT3060-1.8: VIN = 2.35V to 45V, ILOAD = 1mA VIN = 2.35V to 45V, ILOAD = 1mA (E-, I-Grades) (MP-, H-Grades) l l 1.1 4.5 12 mV LT3060-2.5: VIN = 3.05V to 45V, ILOAD = 1mA VIN = 3.05V to 45V, ILOAD = 1mA (E-, I-Grades) (MP-, H-Grades) l l 1.2 5.4 15 mV LT3060-3.3: VIN = 3.85V to 45V, ILOAD = 1mA VIN = 3.85V to 45V, ILOAD = 1mA (E-, I-Grades) (MP-, H-Grades) l l 1.3 7 19 mV VIN = 5.55V to 45V, ILOAD = 1mA VIN = 5.55V to 45V, ILOAD = 1mA (E-, I-Grades) (MP-, H-Grades) l l 1.5 8.5 25 mV (E-, I-Grades) (MP-, H-Grades) l l 2.2 22 55 mV (E-, I-Grades) (MP-, H-Grades) l l 0.6 3.5 4 mV LT3060-5: VIN = 2.1V, ILOAD = 1mA 2.1V < VIN < 45V, 1mA < ILOAD < 100mA 2.1V < VIN < 45V, 1mA < ILOAD < 100mA LT3060-15: VIN = 15.55V to 45V, ILOAD = 1mA VIN = 15.55V to 45V, ILOAD = 1mA LT3060: (Note 4) VIN = 2.1V to 45V, ILOAD = 1mA VIN = 2.1V to 45V, ILOAD = 1mA 3060fc 4 For more information www.linear.com/LT3060 LT3060 Series Electrical Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. (Note 3) PARAMETER Load Regulation (Note 15) Dropout Voltage VIN = VOUT(NOMINAL) (Notes 6, 7) GND Pin Current VIN = VOUT(NOMINAL) + 0.55V (Notes 6, 8) Quiescent Current in Shutdown ADJ Pin Bias Current (Note 9) Output Voltage Noise Shutdown Threshold SHDN Pin Current (Note 10) Ripple Rejection VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 100mA CONDITIONS LT3060-1.2: VIN = 2.1V, ILOAD = 1mA to 100mA VIN = 2.1V, ILOAD = 1mA to 100mA LT3060-1.5: VIN = 2.1V, ILOAD = 1mA to 100mA VIN = 2.1V, ILOAD = 1mA to 100mA LT3060-1.8: VIN = 2.35V, ILOAD = 1mA to 100mA VIN = 2.35V, ILOAD = 1mA to 100mA LT3060-2.5: VIN = 3.05V, ILOAD = 1mA to 100mA VIN = 3.05V, ILOAD = 1mA to 100mA LT3060-3.3: VIN = 3.85V, ILOAD = 1mA to 100mA VIN = 3.85V, ILOAD = 1mA to 100mA LT3060-5: VIN = 5.55V, ILOAD = 1mA to 100mA VIN = 5.55V, ILOAD = 1mA to 100mA LT3060-15: VIN = 15.55V, ILOAD = 1mA to 100mA VIN = 15.55V, ILOAD = 1mA to 100mA LT3060: VIN = 2.1V, ILOAD = 1mA to 100mA (Note 4) VIN = 2.1V, ILOAD = 1mA to 100mA ILOAD = 1mA ILOAD = 1mA ILOAD = 10mA ILOAD = 10mA ILOAD = 50mA (Note 14) ILOAD = 50mA (Note 14) ILOAD = 100mA (Note 14) ILOAD = 100mA (Note 14) ILOAD = 0A ILOAD = 1mA ILOAD = 10mA ILOAD = 50mA ILOAD = 100mA VIN = 45V, VSHDN = 0V MIN (E-, I-Grades) (MP-, H-Grades) (E-, I-Grades) (MP-, H-Grades) (E-, I-Grades) (MP-, H-Grades) (E-, I-Grades) (MP-, H-Grades) (E-, I-Grades) (MP-, H-Grades) (E-, I-Grades) (MP-, H-Grades) (E-, I-Grades) (MP-, H-Grades) (E-, I-Grades) (MP-, H-Grades) VIN = 2.1V COUT = 10F, ILOAD = 100mA, CBYP = 0.01F VOUT = 600mV, BW = 10Hz to 100kHz VOUT = Off to On VOUT = On to Off VSHDN = 0V VSHDN = 45V l l l l l 40 60 160 0.8 2 0.3 MAX 10 18 12 22 14 27 19 37 24 49 35 75 100 225 4 9 110 180 200 300 280 410 350 510 80 100 350 1.8 4 1 l 15 60 l l l l 2.5 l l 2.6 l l 2.8 l l 3.1 l l 3.7 l l 7 l l 0.2 75 l 150 l 240 l 300 l 30 UNITS mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV A A A mA mA A nA VRMS 0.3 0.8 0.7 LT3060-1.2: VIN = 2.7V (Avg) 64 0.9 79 LT3060-1.5: VIN = 3V (Avg) LT3060-1.8: VIN = 3.3V (Avg) 62 77 dB 60 75 dB LT3060-2.5: VIN = 4V (Avg) LT3060-3.3: VIN = 4.8V (Avg) 58 73 dB 55 70 dB LT3060-5: 52 67 dB 45 60 dB l l l l VIN = 6.5V (Avg) LT3060-15: VIN = 16.5V (Avg) LT3060: VIN = 2.1V (Avg) (Note 4) Current Limit TYP 2.4 VIN = 7V, VOUT = 0 VIN = VOUT(NOMINAL) + 1V (Notes 6, 12), VOUT = -5% 70 l 110 1.5 1 3 V V A A dB 85 dB 200 mA mA 3060fc For more information www.linear.com/LT3060 5 LT3060 Series Electrical Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. (Note 3) PARAMETER Input Reverse Leakage Current Reverse Output Current (Note 11) CONDITIONS VIN = -45V, VOUT = 0 MIN TYP MAX 300 LT3060-1.2: VOUT = 1.2V, VIN = 0V 5 10 A LT3060-1.5: VOUT = 1.5V, VIN = 0V 5 10 A LT3060-1.8: VOUT = 1.8V, VIN = 0V LT3060-2.5: VOUT = 2.5V, VIN = 0V 5 10 A 5 10 A LT3060-3.3: VOUT = 3.3V, VIN = 0V LT3060-5: VOUT = 5V, VIN = 0V 5 10 A 5 10 A 5 10 A 0.2 10 A l LT3060-15: VOUT = 15V, VIN = 0V LT3060: VOUT = 1.2V, VIN = 0V Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Absolute maximum input-to-output differential voltage is not achievable with all combinations of rated IN pin and OUT pin voltages. With the IN pin at 50V, the OUT pin may not be pulled below 0V. The total measured voltage from IN to OUT must not exceed 50V. If OUT is above ground, do not actively pull OUT above IN by more than 40V. Note 3: The LT3060 regulators are tested and specified under pulse load conditions such that TJ TA . The LT3060E regulators are 100% tested at TA = 25C. Performance at -40C to 125C is assured by design, characterization and correlation with statistical process controls. The LT3060I regulators are guaranteed over the full -40C to 125C operating junction temperature range. The LT3060MP regulators are 100% tested over the -55C to 150C operating junction temperature range. The LT3060H regulators are 100% tested at the 150C operating junction temperature. High junction temperatures degrade operating lifetimes. Operating lifetime is derated at junction temperatures greater than 125C. Note 4: The LT3060 adjustable version is tested and specified for these conditions with the ADJ connected to the OUT pin. Note 5: Maximum junction temperature limits operating conditions. The regulated output voltage specification does not apply for all possible combinations of input voltage and output current. Limit the output current range if operating at the maximum input-to-output voltage differential. Limit the input-to-output voltage differential if operating at maximum output current. Current limit foldback will limit the maximum output current as a function of input-to-output voltage. See Current Limit vs VIN - VOUT in the Typical Performance Characteristics section. Note 6: To satisfy minimum input voltage requirements, the LT3060 adjustable version is tested and specified for these conditions with an external resistor divider (bottom 115k, top 365k) for an output voltage of 2.5V. The external resistor divider adds 5A of DC load on the output. This external current is not factored into GND pin current. UNITS A Note 7: Dropout voltage is the minimum input-to-output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage equals: (VIN - VDROPOUT). For the LT3060, LT3060-1.2, LT3060-1.5 and LT3060-1.8, dropout is limited by the minimum input specification under some output voltages and load conditions. See the Minimum Input Voltage curve in the Typical Performance Characteristics section. Note 8: GND pin current is tested with VIN = VOUT(NOMINAL) + 0.55V and a current source load. GND pin current will increase in dropout. See GND pin current curves in the Typical Performance Characteristics section. Note 9: ADJ pin bias current flows out of the ADJ pin. Note 10: SHDN pin current flows into the SHDN pin. Note 11: Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. This current flows into the OUT pin and out of the GND pin. Note 12: To satisfy requirements for minimum input voltage, current limit is tested at VIN = VOUT(NOMINAL) + 1V or VIN = 2.1V, whichever is greater. Note 13: This IC includes overtemperature protection that protects the device during momentary overload conditions. Junction temperature will exceed 125C (LT3060E, LT3060I) or 150C (LT3060MP, LT3060H) when overtemperature circuitry is active. Continuous operation above the specified maximum junction temperature may impair device reliability. Note 14: The dropout voltage specification is guaranteed for the DFN package. The dropout voltage specification for high output currents cannot be guaranteed for the TS8 package due to production test limitations. Note 15: The load regulation specification is guaranteed for the fixed voltage options in the DFN package. The load regulation specification cannot be guaranteed for the fixed voltage options in the TS8 package due to production test limitations. The TS8 packages are tested similarly to the LT3060 adjustable version with the ADJ connected to the OUT pin. 3060fc 6 For more information www.linear.com/LT3060 LT3060 Series Typical Performance Characteristics Typical Dropout Voltage 500 500 400 TJ = 125C 300 TJ = 25C 200 150 100 50 0 0 500 450 350 300 TJ 25C 250 200 150 LT3060 30 20 3060 G03 LT3060-1.5 Output Voltage 1.224 I = 1mA 1.220 L 1.530 I = 1mA 1.525 L 1.216 1.520 1.212 1.515 1.208 1.204 1.200 1.196 1.192 1.188 1.510 1.505 1.500 1.495 1.490 1.485 1.480 1.180 1.475 1.176 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 1.470 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G05 LT3060-1.8 Output Voltage 3060 G06 LT3060-3.3 Output Voltage LT3060-2.5 Output Voltage 1.836 I = 1mA 1.830 L 2.55 2.54 1.824 3.366 I = 1mA 3.355 L IL = 1mA 3.344 2.53 OUTPUT VOLTAGE (V) 1.818 1.812 1.806 1.800 1.794 1.788 1.782 IL = 1mA 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 10 20 30 40 50 60 70 80 90 100 OUTPUT CURRENT (mA) 1.184 VSHDN = 0V 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G04 OUTPUT VOLTAGE (V) 150 50 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) QUIESCENT CURRENT (A) LT3060-1.2/-1.5/-1.8/-2.5/-3.3/-5 IL = 10mA 200 LT3060-1.2 Output Voltage VIN = 6V, VSHDN = VIN 70 RL = (120k FOR LT3060) IL = 0 (5A FOR LT3060) 10 250 50 Quiescent Current 40 300 100 0 IL = 50mA 350 3060 G02 80 50 400 100 3060 G01 60 IL = 100mA 450 TJ 150C 400 0 10 20 30 40 50 60 70 80 90 100 OUTPUT CURRENT (mA) = TEST POINTS OUTPUT VOLTAGE (V) DROPOUT VOLTAGE (mV) 450 550 DROPOUT VOLTAGE (mV) GUARANTEED DROPOUT VOLTAGE (mV) 550 250 Dropout Voltage Guaranteed Dropout Voltage 550 350 TA = 25C, unless otherwise noted. 2.52 2.51 2.50 2.49 2.48 3.333 3.322 3.311 3.300 3.289 3.278 3.267 1.776 2.47 1.770 2.46 3.245 1.764 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 2.45 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3.234 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G07 3.256 3060 G08 3060 G09 3060fc For more information www.linear.com/LT3060 7 LT3060 Series Typical Performance Characteristics LT3060-5 Output Voltage 5.10 LT3060-15 Output Voltage 15.20 5.02 5.00 4.98 4.96 4.94 15.15 15.10 15.05 15.00 14.95 14.90 14.85 4.90 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G10 0.590 125 100 75 VSHDN = VIN 25 TJ = 25C 175 RL = VOUT = 1.8V QUIESCENT CURRENT (A) QUIESCENT CURRENT (A) 150 125 100 75 VSHDN = VIN 50 25 VSHDN = 0V 8 9 0 10 1 2 QUIESCENT CURRENT (A) 125 100 75 VSHDN = VIN 2 8 9 3 4 5 6 7 INPUT VOLTAGE (V) 8 75 10 9 10 3060 G15 0 1 2 VSHDN = VIN 2 9 10 3060 G14 150 125 100 75 VSHDN = VIN 50 25 VSHDN = 0V 1 8 TJ = 25C 175 RL = VOUT = 5V 75 0 3 4 5 6 7 INPUT VOLTAGE (V) LT3060-5 Quiescent Current 100 50 VSHDN = 0V 200 125 0 VSHDN = VIN 50 3060 G13 150 25 VSHDN = 0V 1 3 4 5 6 7 INPUT VOLTAGE (V) TJ = 25C 175 RL = VOUT = 3.3V 150 0 100 LT3060-3.3 Quiescent Current TJ = 25C 175 RL = VOUT = 2.5V 25 125 0 200 200 50 0 3060 G12 LT3060-2.5 Quiescent Current 150 25 VSHDN = 0V QUIESCENT CURRENT (A) QUIESCENT CURRENT (A) LT3060-1.8 Quiescent Current 200 TJ = 25C 175 RL = VOUT = 1.5V 3 4 5 6 7 INPUT VOLTAGE (V) 0.596 0.594 LT3060-1.5 Quiescent Current 150 2 0.600 0.598 0.588 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G11 200 TJ = 25C 175 RL = VOUT = 1.2V 1 0.602 14.75 LT3060-1.2 Quiescent Current 0 0.604 14.70 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G10a 200 50 0.606 0.592 14.80 4.92 QUIESCENT CURRENT (A) ADJ PIN VOLTAGE (V) OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 5.04 0 0.612 I = 1mA 0.610 VL = 2.1V IN 0.608 15.25 IL = 1mA 5.06 0 LT3060 ADJ Pin Voltage 15.30 IL = 1mA 5.08 TA = 25C, unless otherwise noted. 3 4 5 6 7 INPUT VOLTAGE (V) 8 9 10 3060 G16 0 VSHDN = 0V 0 1 2 3 4 5 6 7 INPUT VOLTAGE (V) 8 9 10 3060 G17 3060fc 8 For more information www.linear.com/LT3060 LT3060 Series Typical Performance Characteristics LT3060-15 Quiescent Current 80 125 VSHDN = VIN 50 25 0 5 10 50 40 VSHDN = VIN 30 20 10 VSHDN = 0V 0 60 15 20 25 30 35 INPUT VOLTAGE (V) 40 0 45 2.00 5 10 3060 G17a 1.75 RL = 12 IL = 100mA* 1.50 1.25 1.00 RL = 24 IL = 50mA* 0.75 RL = 1.2k IL = 1mA* 0.50 0.25 VSHDN = 0 0 TJ = 25C *FOR VOUT = 1.2V VSHDN = VIN 2.25 GND PIN CURRENT (mA) 150 2.50 TJ = 25C RL = 120k VOUT = 0.6V 70 QUIESCENT CURRENT (A) QUIESCENT CURRENT (A) TJ = 25C 175 RL = VOUT = 15V 75 LT3060-1.2 GND Pin Current LT3060 Quiescent Current 200 100 TA = 25C, unless otherwise noted. 15 20 25 30 35 INPUT VOLTAGE (V) 40 0 45 0 1 2 RL = 120 IL = 10mA* 3 4 5 6 7 INPUT VOLTAGE (V) 8 9 10 3060 G19 3060 G18 LT3060-1.5 GND Pin Current 1.75 RL = 15 IL = 100mA* 1.50 1.25 1.00 RL = 30 IL = 50mA* 0.75 RL = 1.5k IL = 1mA* 0.50 0.25 0 0 1 2 2.00 RL = 150 IL = 10mA* 3 4 5 6 7 INPUT VOLTAGE (V) 8 9 1.75 1.25 1.00 1.75 RL = 66 IL = 50mA* 0.75 RL = 3.3k IL = 1mA* 0.50 0.25 0 0 1 2 RL = 330 IL = 10mA* 3 4 5 6 7 INPUT VOLTAGE (V) 1 2 8 2.00 RL = 180 IL = 10mA* 3 4 5 6 7 INPUT VOLTAGE (V) 8 9 2.50 1.75 9 2.00 1.75 1.25 1.00 0.50 RL = 5k IL = 1mA* 0.50 0.25 10 3060 G23 0 0 1 2 RL = 500 IL = 10mA* 3 4 5 6 7 INPUT VOLTAGE (V) 0 1 2 RL = 250 IL = 10mA* 3 4 5 6 7 INPUT VOLTAGE (V) 8 9 10 3060 G22 LT3060-15 GND Pin Current RL = 100 IL = 50mA* 0.75 RL = 2.5k IL = 1mA* 3060 G21 1.25 1.00 RL = 50 IL = 50mA* 0.75 0 10 RL = 50 IL = 100mA* 1.50 RL = 25 IL = 100mA* 1.50 0.25 TJ = 25C *FOR VOUT = 5V VSHDN = VIN 2.25 TJ = 25C *FOR VOUT = 2.5V VSHDN = VIN 2.25 LT3060-5 GND Pin Current 1.25 1.00 0 3060 G20 RL = 33 IL = 100mA* 1.50 RL = 1.8k IL = 1mA* 0.50 0 10 GND PIN CURRENT (mA) GND PIN CURRENT (mA) 2.00 RL = 36 IL = 50mA* 0.75 0.25 TJ = 25C *FOR VOUT = 3.3V VSHDN = VIN 2.25 RL = 18 IL = 100mA* 1.50 LT3060-3.3 GND Pin Current 2.50 TJ = 25C *FOR VOUT = 1.8V VSHDN = VIN 2.25 GND PIN CURRENT (mA) GND PIN CURRENT (mA) 2.00 2.50 GND PIN CURRENT (mA) TJ = 25C *FOR VOUT = 1.5V VSHDN = VIN 2.25 LT3060-2.5 GND Pin Current LT3060-1.8 GND Pin Current 2.50 8 9 2.50 2.00 1.75 1.50 1.25 RL = 300 IL = 50mA* 1.00 0.75 RL = 15k IL = 1mA* 0.50 0.25 10 3060 G24 TJ = 25C *FOR VOUT = 15V VSHDN = VIN RL = 150 IL = 100mA* 2.25 QUIESCENT CURRENT (mA) 2.50 0 0 5 10 RL = 1.5k IL = 10mA* 15 20 25 30 35 INPUT VOLTAGE (V) 40 45 3060 G24a 3060fc For more information www.linear.com/LT3060 9 LT3060 Series Typical Performance Characteristics LT3060 GND Pin Current TJ = 25C *FOR VOUT = 0.6V VSHDN = VIN RL = 6 IL = 100mA* 1.50 1.25 1.00 RL = 12 IL = 50mA* 0.75 0.50 RL = 600 IL = 1mA* 0.25 0 1 2 RL = 60 IL = 10mA* 3 4 5 6 7 INPUT VOLTAGE (V) 8 3.0 2.5 2.0 1.5 1.0 0.5 9 0 10 3060 G25 1.8 1.8 SHDN PIN INPUT CURRENT (A) SHDN PIN INPUT CURRENT (A) 2.0 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0 ADJ Pin Bias Current 50 VSHDN = 45V 40 1.6 1.4 1.2 1.0 0.8 0.6 0.4 5 10 15 20 25 30 35 SHDN PIN VOLTAGE (V) 40 45 3060 G28 TJ = -50C 150 125 100 75 200 1-PHASE 1752-PHASE 1503-PHASE 4-PHASE 1256-PHASE 100 75 50 25 25 VIN = 7V VOUT = 0V 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 5 -20 -30 3060 G30 LT3060 Reverse Output Current 50 0 0 -10 2.0 225 CURRENT LIMIT (mA) 175 10 Current Limit vs Temperature TJ = 25C 200 20 -40 250 VOUT = - 5% TJ = 125C 30 -50 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G29 Current Limit vs VIN -VOUT 225 0 3060 G27 0.2 0.2 CURRENT LIMIT (mA) 10 20 30 40 50 60 70 80 90 100 OUTPUT CURRENT (mA) 1.5 1.4 1.3 1.2 1.1 1.0 0.9 OFF TO ON 0.8 0.7 0.6 ON TO OFF 0.5 0.4 0.3 0.2 0.1 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) SHDN Pin Input Current SHDN Pin Input Current 250 0 3060 G26 2.0 0 VIN = VOUT(NOMINAL) + 1V SHDN PIN THRESHOLD (V) 1.75 SHDN Pin Threshold 10 15 20 25 30 35 40 INPUT/OUTPUT DIFFERENTIAL (V) 45 3060 G31 3060 G32 REVERSE OUTPUT CURRENT (mA) GND PIN CURRENT (mA) 2.00 GND Pin Current vs ILOAD 3.5 GND PIN CURRENT (mA) 2.25 0 4.0 ADJ PIN BIAS CURRENT (nA) 2.50 TA = 25C, unless otherwise noted. TJ = 25C 1.8 VIN = 0V CURRENT FLOWS 1.6 INTO OUT PIN 1.4 VOUT = VADJ 1.2 1.0 ADJ 0.8 0.6 0.4 0.2 0 OUT 0 5 10 15 20 25 30 35 OUTPUT VOLTAGE (V) 40 45 3060 G33 3060fc 10 For more information www.linear.com/LT3060 LT3060 Series Typical Performance Characteristics LT3060-1.2/-1.5/-1.8/-2.5/-3.3/-5 /-15 Reverse Output Current 45 LT3060-1.8 250 LT3060-2.5 200 LT3060-3.3 LT3060-5 LT3060-15 100 50 0 0 5 10 15 20 25 30 35 OUTPUT VOLTAGE (V) 40 35 30 25 20 45 OUT (LT3060-1.2/-1.5/ 10 -1.8/2.5/-3.3/-5/-15) RIPPLE REJECTION (dB) 90 CREF/BYP = 10nF, CFF = 0 70 60 50 40 30 IL = 100mA VOUT = 5V CREF/BYP = CFF = 0 10 COUT = 10F VIN = 6V + 50mVRMS RIPPLE 0 10 100 1k 10k 100k 1M FREQUENCY (Hz) 10M Minimum Input Voltage IL = 50mA 1.0 0.8 0.6 0.4 LOAD REGULATION (mV) MINIMUM INPUT VOLTAGE (V) CREF/BYP = 10nF, CFF = 0 60 50 40 30 IL = 100mA VOUT = 15V CREF/BYP = CFF = 0 10 COUT = 10F VIN = 16V + 50mVRMS RIPPLE 0 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G39 CREF/BYP = 0 60 50 40 30 20 I = 100mA L 10 VOUT = 0.6V VIN = 2.6V + 0.5VP-P RIPPLE AT f = 120Hz 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G38 Load Regulation 0 LT3060-2.5 -5 -10 -15 CREF/BYP = 10nF 70 Load Regulation -5 -20 VSHDN = VIN I = 100mA 20 L CREF/BYP = CFF = 0 10 VIN = VOUT(NOMINAL) + 1.5V + COUT = 2.2F 50mVRMS RIPPLE 0 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) 80 0 1.8 0.2 30 90 70 5 2.0 1.2 40 Ripple Rejection vs Temperature 3060 G37a 3060 G37 2.2 1.4 COUT = 10F 50 100 20 IL = 100mA VOUT = 5V 3060 G36 CREF/BYP = CFF = 10nF 80 20 1.6 60 LT3060-15 Input Ripple Rejection 100 CREF/BYP = CFF = 10nF 80 70 3060 G35 RIPPLE REJECTION (dB) 90 ADJ (LT3060) 5 OUT (LT3060) 0 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G34 VOUT = 0.6V 80 15 LT3060-5 Input Ripple Rejection 100 90 LT3060-5 LT3060-3.3 LT3060-2.5 LT3060-1.8 LT3060-1.5 LT3060-1.2 LT3060 -25 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G40 VIN = VOUT(NOMINAL) + 0.55V (LT3060-1.8/-2.5/-3.3/-5) VIN = 2.1V (LT3060/-1.2/-1.5) IL = 1mA TO 100mA LOAD REGULATION (mV) 150 40 VIN = 0V, VOUT = VADJ = 1.2V (LT3060) VOUT = 1.2V (LT3060-1.2) VOUT = 1.5V (LT3060-1.5) VOUT = 1.8V (LT3060-1.8) VOUT = 2.5V (LT3060-2.5) VOUT = 3.3V (LT3060-3.3) VOUT = 5V (LT3060-5) VOUT = 15V (LT3060-15) RIPPLE REJECTION (dB) LT3060-1.2 LT3060-1.5 Input Ripple Rejection 100 RIPPLE REJECTION (dB) TJ = 25C VIN = 0V 300 Reverse Output Current 50 REVERSE OUTPUT CURRENT (A) REVERSE OUTPUT CURRENT (A) 350 TA = 25C, unless otherwise noted. -10 -15 -20 -25 -30 LT3060-5 LT3060-15 -35 -40 VIN = VOUT(NOMINAL) + 0.55V IL = 1mA TO 100mA -50 -75 -50 -25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3060 G40a -45 3060fc For more information www.linear.com/LT3060 11 LT3060 Series Typical Performance Characteristics 0.1 0.01 VOUT = 15V VOUT = 5V VOUT = 3.3V VOUT = 2.5V 100 10 VOUT = 1.8V VOUT = 1.5V VOUT = 1.2V VOUT = 0.6V 10k 1k FREQUENCY (Hz) 100k CREF/BYP = 0 80 CREF/BYP = 10pF 70 60 CREF/BYP = 100pF 50 40 30 CREF/BYP = 1nF 20 CREF/BYP = 10nF 10 0 0.01 CREF/BYP = 100nF 0.1 1 10 LOAD CURRENT (mA) 120 OUTPUT NOISE VOLTAGE (VRMS) 110 100 90 80 1 VOUT = 0.6V 0.1 CREF/BYP = 10nF 0.01 COUT = 10F IL = 100mA 10 100 CREF/BYP = 1nF 1k 10k FREQUENCY (Hz) 100k 100 3060 G44 VOUT = 3.3V VOUT = 2.5V CFF = 0 1 CFF = 10nF 0.1 0.01 RMS Output Noise vs Load Current CREF/BYP = 10nF, CFF = 0 VOUT = 5V COUT = 10F IL = 100mA 10 100 CFF = 1nF 1k 10k FREQUENCY (Hz) 70 60 50 40 30 VOUT = 0.6V 20 V VOUT = 1.2V OUT = 1.8V 10 VOUT = 1.5V 0 1n 10n 10p 100p FEEDFORWARD CAPACITOR, CFF (F) 250 100k 3060 G43 350 f = 10Hz TO 100kHz 325 COUT = 10F VOUT = 15V 300 I FB-DIVIDER = 5A 275 250 225 200 175 VOUT = 5V 150 125 VOUT = 2.5V 100 75 50 VOUT = 0.6V 25 0 1 10 100 0.01 0.1 LOAD CURRENT (mA) 3060 G45a 3060 G45 f = 10Hz TO 100kHz CREF/BYP = 10nF COUT = 10F IFB-DIVIDER = 5A IL = 100mA CFF = 100pF RMS Output Noise vs Load Current CREF/BYP = 10nF, CFF = 0 170 160 f = 10Hz TO 100kHz VOUT = 5V 150 COUT = 10F = 5A I FB-DIVIDER 140 VOUT = 2.5V 130 VOUT = 3.3V 120 VOUT = 1.8V 110 100 VOUT = 1.5V 90 80 70 60 50 40 VOUT = 1.2V 30 20 VOUT = 0.6V 10 0 1 10 100 0.01 0.1 LOAD CURRENT (mA) RMS Output Noise vs Feedforward Capacitor (CFF) VOUT = 5V 10 Output Noise Spectral Density vs CFF, CREF/BYP = 10nF 3060 G42 3060 G41 RMS Output Noise vs Load Current vs CREF/BYP, CFF = 0 VOUT = 0.6V 100 COUT = 10F 90 CREF/BYP = 100pF VOUT = 5V OUTPUT NOISE SPECTRAL DENSITY (V/Hz) 1 10 OUTPUT NOISE VOLTAGE (VRMS) 10 110 OUTPUT NOISE VOLTAGE (VRMS) OUTPUT NOISE SPECTRAL DENSITY (V/Hz) COUT = 10F IL = 100mA Output Noise Spectral Density vs CREF/BYP, CFF = 0 RMS Output Noise vs Feedforward Capacitor (CFF) 225 OUTPUT NOISE VOLTAGE (VRMS) 100 OUTPUT NOISE VOLTAGE (VRMS) OUTPUT NOISE SPECTRAL DENSITY (V/Hz) Output Noise Spectral Density CREF/BYP = 0, CFF = 0 TA = 25C, unless otherwise noted. f = 10Hz TO 100kHz CREF/BYP = 10nF COUT = 10F IFB-DIVIDER = 5A IL = 100mA VOUT = 15V 200 175 150 125 100 75 VOUT = 5V VOUT = 2.5V 50 25 0 10p 3060 G46 VOUT = 0.6V 100p 1n FEEDFORWARD CAPACITOR, CFF (F) 10n 3060 G46a 3060fc 12 For more information www.linear.com/LT3060 LT3060 Series Typical Performance Characteristics TA = 25C, unless otherwise noted. LT3060-5 Transient Response, CFF = 0 LT3060-5 10Hz to 100kHz Output Noise, CREF/BYP = 10nF, CFF = 10nF LT3060-5 10Hz to 100kHz Output Noise, CREF/BYP = 10nF, CFF = 0 VOUT = 5V VOUT 50mV/DIV VOUT 100V/DIV VOUT 100V/DIV IOUT = 10mA TO 100mA IOUT 50mA/DIV COUT = 10F IL = 100mA VOUT = 5V 3060 G47 1ms/DIV COUT = 10F IL = 100mA VOUT = 5V 3060 G48 1ms/DIV 3060 G49 LT3060-5 Transient Response Load Dump LT3060-5 Transient Response, CFF = 10nF VOUT 20mV/DIV VIN = 6V 100s/DIV COUT = CIN = 10F IFB-DIVIDER = 5A VOUT VOUT = 5V 10mV/DIV VIN = 12V TO 45V VOUT = 5V IOUT = 10mA TO 100mA VIN 10V/DIV IOUT 50mA/DIV 3060 G50 VIN = 6V 20s/DIV COUT = CIN = 10F IFB-DIVIDER = 5A 2ms/DIV COUT = CIN = 2.2F CREF/BYP = CFF = 10nF IFB-DIVIDER = 5A SHDN Transient Response CREF/BYP = 10nF SHDN Transient Response CREF/BYP = 0 VOUT 2V/DIV RL = 50 VOUT 2V/DIV RL = 50 REF/BYP 500mV/DIV REF/BYP 500mV/DIV SHDN 1V/DIV SHDN 1V/DIV COUT = CIN = 2.2F CFF = 0 4ms/DIV 3060 G51 3060 G52 COUT = CIN = 2.2F CFF = 0 4ms/DIV 3060 G53 3060fc For more information www.linear.com/LT3060 13 LT3060 Series Typical Performance Characteristics Start-Up Time vs REF/BYP Capacitor 1000 CFF = 0 Start-Up Time vs CFF CREF/BYP = 0 IFB-DIVIDER = 5A LT3060-15 100 10 START-UP TIME (ms) START-UP TIME (ms) 100 TA = 25C, unless otherwise noted. 1 0.1 LT3060-5 10 LT3060-3.3 1 LT3060-2.5 LT3060-1.8 0.1 LT3060-1.5 0.01 10p 100p 1n 10n REF/BYP CAPACITOR (F) 100n 0.01 10p LT3060-1.2 3060 G54 100p 1n 10n FEEDFORWARD CAPACITOR, CFF (F) 100n 3060 G55 3060fc 14 For more information www.linear.com/LT3060 LT3060 Series Pin Functions (DC8/TS8) REF/BYP (Pin 1/Pin 8): Reference/Bypass. Connecting a single capacitor from this pin to GND bypasses the LT3060's reference noise and soft-starts the reference. A 10nF bypass capacitor typically reduces output voltage noise to 30VRMS in a 10Hz to 100kHz bandwidth. Softstart time is directly proportional to the REF/BYP capacitor value. If the LT3060 is placed in shutdown, REF/BYP is actively pulled low by an internal device to reset soft-start. If low noise or soft-start performance is not required, this pin must be left floating (unconnected). Do not drive this pin with any active circuitry. ADJ (Pin 2/Pin 7): Adjust. This pin is the error amplifier's inverting terminal. It's typical bias current of 15nA flows out of the pin (see curve of ADJ Pin Bias Current vs Temperature in the Typical Performance Characteristics section). The ADJ pin voltage is 600mV referenced to GND. Connecting a capacitor from ADJ to OUT reduces output noise and improves transient response for output voltages greater than 600mV. See the Applications Information section for calculating the value of the feedforward capacitor. For fixed voltage versions of the LT3060, if low noise and fast transient response is not required, this pin must be left floating (unconnected). OUT (Pins 3, 4/Pin 6): Output. These pin(s) supply power to the load. Stability requirements demand a minimum 2.2F ceramic output capacitor to prevent oscillations. Large load transient applications require larger output capacitors to limit peak voltage transients. See the Applications Information section for details on transient response and reverse output characteristics. Permissible output voltage range is 600mV to 44.5V. IN (Pins 5, 6/Pin 5): Input. These pin(s) supply power to the device. The LT3060 requires a local IN bypass capacitor if it is located more than six inches from the main input filter capacitor. In general, battery output impedance rises with frequency, so adding a bypass capacitor in batterypowered circuits is advisable. An input bypass capacitor in the range of 1F to 10F suffices. The LT3060 withstands reverse voltages on the IN pin with respect to its GND and OUT pins. In a reversed input situation, such as a battery plugged in backwards, the LT3060 behaves as if a large resistor is in series with its input. Limited reverse current flows into the LT3060 and no reverse voltage appears at the load. The device protects itself and the load. SHDN (Pin 7/Pin 1): Shutdown. Pulling the SHDN pin low puts the LT3060 into a low power state and turns the output off. Drive the SHDN pin with either logic or an open collector/drain with a pull-up resistor. The resistor supplies the pull-up current to the open collector/drain logic, normally several microamperes, and the SHDN pin current, typically less than 3A. If unused, connect the SHDN pin to IN. The LT3060 does not function if the SHDN pin is not connected. The SHDN pin cannot be driven below GND unless tied to the IN pin. If the SHDN pin is driven below GND while IN is powered, the output may turn on. SHDN pin logic cannot be referenced to a negative supply voltage. GND (Pin 8, Exposed Pad Pin 9/Pins 2, 3, 4): Ground. For the adjustable LT3060, connect the bottom of the external resistor divider that sets the output voltage directly to GND for optimum regulation. For the DFN package, tie exposed pad Pin 9 directly to Pin 8 and the PCB ground. This exposed pad provides enhanced thermal performance with its connection to the PCB ground. See the Applications Information section for thermal considerations and calculating junction temperature. 3060fc For more information www.linear.com/LT3060 15 LT3060 Series Applications Information The LT3060 series are micropower, low noise, low dropout voltage, 100mA linear regulators with shutdown. The devices supply up to 100mA at a typical dropout voltage of 300mV and operate over a 1.6V to 45V input range. A single external capacitor provides programmable low noise reference performance and output soft-start functionality. For example, connecting a 10nF capacitor from the REF/BYP pin to GND lowers output noise to 30VRMS over a 10Hz to 100kHz bandwidth. This capacitor also soft-starts the reference and prevents output voltage overshoot at turn-on. The LT3060's quiescent current is merely 40A for the adjustable version and 45A for the fixed voltage versions, while providing fast transient response with a minimum low ESR 2.2F ceramic output capacitor. In shutdown, quiescent current is less than 1A and the reference softstart capacitor is reset. The LT3060 regulators optimize stability and transient response with low ESR, ceramic output capacitors. The regulators do not require the addition of ESR as is common with other regulators. The LT3060 adjustable version typically provides 0.1% line regulation and 0.03% load regulation. For fixed voltage versions, load regulation is slightly increased due to 20m of typical resistance in series with the output. Curves of load regulation appear in the Typical Performance Characteristics section. Internal protection circuitry includes reverse-battery protection, reverse-output protection, reverse-current protection, current limit with foldback and thermal shutdown. This "bullet-proof" protection set makes it ideal for use in battery-powered systems. In battery backup applications where the output is held up by a backup battery and the input is pulled to ground, the LT3060 acts like it has a diode in series with its output and prevents reverse current flow. Additionally, in dual supply applications where the regulator load is returned to a negative supply, the output can be pulled below ground by as much as 45V and the device still starts normally and operates. Adjustable Operation The LT3060 adjustable version has an output voltage range of 0.6V to 44.5V. The output voltage is set by the ratio of two external resistors, as shown in Figure 1. The device servos the output to maintain the ADJ pin voltage at 0.6V referenced to ground. The current in R1 is then equal to 0.6V/R1, and the current in R2 is the current in R1 minus the ADJ pin bias current. The ADJ pin bias current, 15nA at 25C, flows from the ADJ pin through R1 to GND. Calculate the output voltage using the formula in Figure 1. The value of R1 should be no greater than 124k to provide a minimum 5A load current so that errors in the output voltage, caused by the ADJ pin bias current, are minimized. Note that in shutdown, the output is turned off and the divider current is zero. Curves of ADJ Pin Voltage vs Temperature and ADJ Pin Bias Current vs Temperature appear in the Typical Performance Characteristics section. The adjustable device is tested and specified with the ADJ pin tied to the OUT pin, yielding VOUT = 0.6V. Specifications for output voltages greater than 0.6V are proportional to the ratio of the desired output voltage to 0.6V: VOUT /0.6V. For example, load regulation for an output current change of 1mA to 100mA is 0.2mV (typical) at VOUT = 0.6V. At VOUT = 12V, load regulation is: 12V * (0.2mV) = 4mV 0.6V IN VIN OUT LT3060 SHDN VOUT R2 ADJ GND REF/BYP R1 R2 - IADJ * R2 VOUT = 0.6V 1+ R1 ( ) VADJ = 0.6V IADJ = 15nA at 25 C 3060 F01 OUTPUT RANGE = 0.6V to 44.5V Figure 1. Adjustable Operation 3060fc 16 For more information www.linear.com/LT3060 LT3060 Series Applications Information Table 1. Output Voltage Resistor Divider Values VOUT (V) R1 (k ) R2 (k ) 1.2 118 118 1.5 121 182 1.8 124 249 2.5 115 365 3 124 499 3.3 124 562 5 115 845 12 124 2370 15 124 3010 Bypass Capacitance, Output Voltage Noise and Transient Response The LT3060 regulators provide low output voltage noise over the 10Hz to 100kHz bandwidth while operating at full load with the addition of a reference bypass capacitor (CREF/BYP) from the REF/BYP pin to GND. A good quality, low leakage capacitor is recommended. This capacitor bypasses the internal reference of the regulator, providing a low frequency noise pole. With the use of 10nF for CREF/BYP, the output voltage noise decreases to as low as 30VRMS when the output voltage is set for 0.6V. For higher output voltages (generated by using a feedback resistor divider), the output voltage noise gains up accordingly when using CREF/BYP by itself. VIN OUT LT3060 SHDN VOUT R2 CFF COUT ADJ GND REF/BYP Higher values of output voltage noise are often measured if care is not exercised with regard to circuit layout and testing. Crosstalk from nearby traces induces unwanted noise onto the LT3060's output. Power supply ripple rejection must also be considered. The LT3060 regulators do not have unlimited power supply rejection and will pass a small portion of the input noise through to the output. Using a feedforward capacitor (CFF) from VOUT to the ADJ pin has the added benefit of improving transient response for output voltages greater than 0.6V. With no feedforward capacitor, the settling time will increase as the output voltage is raised above 0.6V. Use the equation in Figure 2 to determine the minimum value of CFF to achieve a transient response that is similar to 0.6V output voltage performance regardless of the chosen output voltage (see Figure 3 and Transient Response in the Typical Perf ormance Characteristics section). VOUT = 5V COUT = 10F IFB-DIVIDER = 5A 0 VOUT 50mV/DIV IN To lower the output voltage noise for higher output voltages, include a feedforward capacitor (CFF) from VOUT to the ADJ pin. A good quality, low leakage capacitor is recommended. This capacitor bypasses the error amplifier of the regulator, providing a low frequency noise pole. With the use of 10nF for both CFF and CREF/BYP, output voltage noise decreases to 30VRMS when the output voltage is set to 5V by a 5A feedback resistor divider. If the current in the feedback resistor divider is doubled, CFF must also be doubled to achieve equivalent noise performance. FEEDFORWARD CAPACITOR, CFF Table 1 shows 1% resistor divider values for some common output voltages with a resistor divider current of about 5A. 100pF 1nF 10nF R1 CREF/BYP 3060 F02 4.7nF * (IFB- DIVIDER ) 5A V IFB-DIVIDER = OUT R1+R2 CFF LOAD CURRENT 100mA/DIV 100s/DIV 3060 F03 Figure 3. Transient Response vs Feedforward Capacitor Figure 2. Feedforward Capacitor for Fast Transient Response 3060fc For more information www.linear.com/LT3060 17 LT3060 Series Applications Information During start-up, the internal reference soft-starts if a reference bypass capacitor is present. Regulator startup time is directly proportional to the size of the bypass capacitor, slowing to 6ms with a 10nF bypass capacitor (See Start-up Time vs REF/BYP Capacitor in the Typical Performance Characteristics section). The reference bypass capacitor is actively pulled low during shutdown to reset the internal reference. Start-up time is also affected by the use of a feedforward capacitor. Start-up time is directly proportional to the size of the feedforward capacitor and output voltage, and is inversely proportional to the feedback resistor divider current, slowing to 15ms with a 4.7nF feedforward capacitor and a 10F output capacitor for an output voltage set to 5V by a 5A feedback resistor divider. Output Capacitance The LT3060 regulators are stable with a wide range of output capacitors. The ESR of the output capacitor affects stability, most notably with small capacitors. Use a minimum output capacitor of 2.2F with an ESR of 3 or less to prevent oscillations. If a feedforward capacitor is used with output voltages set for greater than 24V, use a minimum output capacitor of 4.7F. The LT3060 is a micropower device and output load transient response is a function of output capacitance. Larger values of output capacitance decrease the peak deviations and provide improved transient response for larger load current 20 The X7R type works over a wider temperature range and has better temperature stability, while the X5R is less expensive and is available in higher values. Care still must be exercised when using X5R and X7R capacitors; the X5R and X7R codes only specify operating temperature range and maximum capacitance change over temperature. Capacitance change due to DC bias with X5R and X7R capacitors is better than Y5V and Z5U 40 20 X5R CHANGE IN VALUE (%) CHANGE IN VALUE (%) Give extra consideration to the use of ceramic capacitors. Manufacturers make ceramic capacitors with a variety of dielectrics, each with different behavior across temperature and applied voltage. The most common dielectrics are specified with EIA temperature characteristic codes of Z5U, Y5V, X5R and X7R. The Z5U and Y5V dielectrics provide high C-V products in a small package at low cost , but exhibit strong voltage and temperature coefficients, as shown in Figures 4 and 5. When used with a 5V regulator, a 16V 10F Y5V capacitor can exhibit an effective value as low as 1F to 2F for the DC bias voltage applied, and over the operating temperature range. The X5R and X7R dielectrics yield much more stable characteristics and are more suitable for use as the output capacitor. BOTH CAPACITORS ARE 16V, 1210 CASE SIZE, 10F 0 -20 -40 -60 Y5V -80 -100 changes. Bypass capacitors, used to decouple individual components powered by the LT3060, increase the effective output capacitor value. For applications with large load current transients, a low ESR ceramic capacitor in parallel with a bulk tantalum capacitor often provides an optimally damped response. -20 -40 2 4 8 6 10 12 DC BIAS VOLTAGE (V) 14 16 BOTH CAPACITORS ARE 16V, 1210 CASE SIZE, 10F -100 -50 -25 3060 F04 Figure 4. Ceramic Capacitor DC Bias Characteristics Y5V -60 -80 0 X5R 0 50 25 75 0 TEMPERATURE (C) 100 125 3060 F05 Figure 5. Ceramic Capacitor Temperature Characteristics 3060fc 18 For more information www.linear.com/LT3060 LT3060 Series Applications Information capacitors, but can still be significant enough to drop capacitor values below appropriate levels. Capacitor DC bias characteristics tend to improve as component case size increases, but expected capacitance at operating voltage should be verified. Voltage and temperature coefficients are not the only sources of problems. Some ceramic capacitors have a piezoelectric response. A piezoelectric device generates voltage across its terminals due to mechanical stress, similar to the way a piezoelectric accelerometer or microphone works. For a ceramic capacitor, the stress is induced by vibrations in the system or thermal transients. The resulting voltages produced cause appreciable amounts of noise. A ceramic capacitor produced the trace in Figure 6 in response to light tapping from a pencil. Similar vibration induced behavior can masquerade as increased output voltage noise. VOUT = 0.6V COUT = 10F CREF/BYP = 10nF ILOAD = 100mA allowing the regulator to supply large output currents. With a high input voltage, a problem can occur wherein the removal of an output short will not allow the output to recover. Other regulators, such as the LT1083/LT1084/ LT1085 family and LT1764A also exhibit this phenomenon, so it is not unique to the LT3060. The problem occurs with a heavy output load when the input voltage is high and the output voltage is low. Common situations are: (1) immediately after the removal of a short-circuit or (2) if the shutdown pin is pulled high after the input voltage is already turned on. The load line intersects the output current curve at two points creating two stable output operating points for the regulator. With this double intersection, the input power supply needs to be cycled down to zero and brought up again for the output to recover. Thermal Considerations The power handling capability of the device will be limited by the maximum rated junction temperature (125C for LT3060E, LT3060I or 150C for LT3060MP, LT3060H). Two components comprise the power dissipated by the device: 1. Output current multiplied by the input/output voltage differential: IOUT * (VIN -VOUT), and VOUT 500V/DIV 2. GND pin current multiplied by the input voltage: IGND * VIN 4ms/DIV 3060 F06 Figure 6. Noise Resulting from Tapping on a Ceramic Capacitor Overload Recovery Like many IC power regulators, the LT3060 has safe operating area protection. The safe operating area protection decreases current limit as input-to-output voltage increases, and keeps the power transistor inside a safe operating region for all values of input-to-output voltage. The LT3060 provides some output current at all values of input-to-output voltage up to the specified 45V operational maximum. When power is first applied, the input voltage rises and the output follows the input; allowing the regulator to start-up into very heavy loads. During start-up, as the input voltage is rising, the input-to-output voltage differential is small, GND pin current is determined using the GND Pin Current curves in the Typical Performance Characteristics section. Power dissipation equals the sum of the two components listed above. The LT3060 regulators have internal thermal limiting that protects the device during overload conditions. For continuous normal conditions, the maximum junction temperature of 125C (E-grade, I-grade) or 150C (MP-grade, H-grade) must not be exceeded. Carefully consider all sources of thermal resistance from junction-to-ambient including other heat sources mounted in proximity to the LT3060. The underside of the LT3060 DFN package has exposed metal (1mm2) from the lead frame to the die attachment. The package allows heat to directly transfer from the die junction to the printed circuit board metal to control maximum operating junction temperature. The dual-in-line pin arrangement allows metal to extend beyond the ends of 3060fc For more information www.linear.com/LT3060 19 LT3060 Series Applications Information the package on the topside (component side) of a PCB. Connect this metal to GND on the PCB. The multiple IN and OUT pins of the LT3060 also assist in spreading heat to the PCB. For surface mount devices, heat sinking is accomplished by using the heat spreading capabilities of the PC board and its copper traces. Copper board stiffeners and plated through-holes also can spread the heat generated by power devices. Tables 2 and 3 list thermal resistance for several different board sizes and copper areas. All measurements were taken in still air on a 4 layer FR-4 board with 1oz solid internal planes and 2oz top/bottom external trace planes with a total board thickness of 1.6mm. The four layers were electrically isolated with no thermal vias present. PCB layers, copper weight, board layout and thermal vias will affect the resultant thermal resistance. For more information on thermal resistance and high thermal conductivity test boards, refer to JEDEC standard JESD51, notably JESD51-12 and JESD51-7. Achieving low thermal resistance necessitates attention to detail and careful PCB layout. Table 2. DC Package, 8-Lead DFN COPPER AREA TOPSIDE* BACKSIDE (mm2) (mm2) BOARD AREA (mm2) THERMAL RESISTANCE (JUNCTION-TO-AMBIENT) 2500 2500 2500 48C/W 1000 2500 2500 49C/W 225 2500 2500 50C/W 100 2500 2500 54C/W 50 2500 2500 60C/W *Device is mounted on topside Table 3. TS8 Package, 8 Lead TSOT-23 COPPER AREA TOPSIDE* BACKSIDE (mm2) (mm2) BOARD AREA (mm2) THERMAL RESISTANCE (JUNCTION-TO-AMBIENT) 2500 2500 2500 57C/W 1000 2500 2500 58C/W 225 2500 2500 59C/W 100 2500 2500 63C/W 50 2500 2500 67C/W *Device is mounted on topside Calculating Junction Temperature Example: Given an output voltage of 2.5V, an input voltage range of 12V 5%, an output current range of 0mA to 50mA and a maximum ambient temperature of 85C, what will the maximum junction temperature be? The power dissipated by the device equals: IOUT(MAX) * (VIN(MAX)-VOUT) + IGND * VIN(MAX) where, IOUT(MAX) = 50mA VIN(MAX) = 12.6V IGND at (IOUT = 50mA, VIN = 12.6V) = 0.6mA So, P = 50mA * (12.6V - 2.5V) + 0.6mA * 12.6V = 0.513W Using a DFN package, the thermal resistance ranges from 48C/W to 60C/W depending on the copper area with no thermal vias. So the junction temperature rise above ambient approximately equals: 0.513W * 54C/W = 27.8C The maximum junction temperature equals the maximum ambient temperature plus the maximum junction temperature rise above ambient or: TJMAX = 85C + 27.8C = 112.8C Protection Features The LT3060 regulators incorporate several protection features that make it ideal for use in battery-powered circuits. In addition to the normal protection features associated with monolithic regulators, such as current limiting and thermal limiting, the device also protects against reverse-input voltages, reverse-output voltages and reverse output-to-input voltages. Current limit protection and thermal overload protection protect the device against current overload conditions at the output of the device. The typical thermal shutdown temperature is 165C. For normal operation, do not exceed a junction temperature of 125C (LT3060E, LT3060I) or 150C (LT3060MP, LT3060H). 3060fc 20 For more information www.linear.com/LT3060 LT3060 Series Applications Information The LT3060 IN pin withstands reverse voltages up to 50V. The device limits current flow to less than 300A (typically less than 50A) and no negative voltage appears at OUT. The device protects both itself and the load against batteries that are plugged in backwards. The SHDN pin cannot be driven below GND unless tied to the IN pin. If the SHDN pin is driven below GND while IN is powered, the output may turn on. SHDN pin logic cannot be referenced to a negative supply voltage. The LT3060 incurs no damage if its output is pulled below ground. If the input is left open-circuit or grounded, the output can be pulled below ground by 50V. No current flows through the pass transistor from the output. However, current flows in (but is limited by) the resistor divider that sets the output voltage. Current flows from the bottom resistor in the divider and from the ADJ pin's internal clamp through the top resistor in the divider to the external circuitry pulling OUT below ground. If the input is powered by a voltage source, the output sources current equal to its current limit capability and the LT3060 protects itself by thermal limiting. In this case, grounding the SHDN pin turns off the device and stops the output from sourcing current. The LT3060 incurs no damage if the ADJ pin is pulled above or below ground by less than 50V. For the adjustable version, if the input is left open-circuit or grounded, the ADJ pin performs like a large resistor (typically 30k) in series with a diode when pulled below ground, and like 30k in series with two diodes when pulled above ground. In circuits where a backup battery is required, several different input/output conditions can occur. The output voltage may be held up while the input is either pulled to ground, pulled to some intermediate voltage or left opencircuit. Current flow back into the output follows the curve shown in Figures 7 and 8. If the LT3060's IN pin is forced below the OUT pin or the OUT pin is pulled above the IN pin, input current typically drops to less than 1A. This occurs if the LT3060 input is connected to a discharged (low voltage) battery and either a backup battery or a second regulator holds up the output. The state of the SHDN pin has no effect on the reverse current if the output is pulled above the input. 350 TJ = 25C 1.8 VIN = 0V CURRENT FLOWS 1.6 INTO OUT PIN 1.4 VOUT = VADJ REVERSE OUTPUT CURRENT (A) REVERSE OUTPUT CURRENT (mA) 2.0 1.2 1.0 ADJ 0.8 0.6 0.4 0.2 0 OUT 0 5 10 15 20 25 30 35 OUTPUT VOLTAGE (V) 40 45 LT3060-1.2 LT3060-1.5 LT3060-1.8 250 LT3060-2.5 200 LT3060-3.3 150 LT3060-5 LT3060-15 100 50 0 3060 F07 Figure 7. LT3060 Reverse Output Current TJ = 25C VIN = 0V 300 0 5 10 15 20 25 30 35 OUTPUT VOLTAGE (V) 40 45 3060 F08 Figure 8. LT3060-1.2/-1.5/-1.8/-2.5/-3.3/-5/-15 Reverse Output Current 3060fc For more information www.linear.com/LT3060 21 LT3060 Series Typical Application Paralleling of Regulators for Higher Output Current R1 0.15 VIN > 2.9V + IN OUT LT3060 C1 2.2F ADJ SHDN GND REF/BYP C3 1nF R2 0.15 IN OUT R6 1.74k 1% ADJ SHDN R7 604 1% GND REF/BYP C4 1nF R3 200 R4 200 3 2 + - R5 1k 7 LT1637 C2 4.7F R9 604 1% LT3060 SHDN 2.5V 200mA R8 1.91k 1% 6 C5 10nF 4 3060 TA03 3060fc 22 For more information www.linear.com/LT3060 LT3060 Series Package Description Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. DC Package 8-Lead Plastic DFN (2mm x 2mm) (Reference LTC DWG # 05-08-1719 Rev A) 0.70 0.05 2.55 0.05 1.15 0.05 0.64 0.05 (2 SIDES) PACKAGE OUTLINE 0.25 0.05 0.45 BSC 1.37 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED R = 0.05 TYP 2.00 0.10 (4 SIDES) PIN 1 BAR TOP MARK (SEE NOTE 6) R = 0.115 TYP 5 8 0.40 0.10 0.64 0.10 (2 SIDES) PIN 1 NOTCH R = 0.20 OR 0.25 x 45 CHAMFER (DC8) DFN 0409 REVA 4 0.200 REF 1 0.23 0.05 0.45 BSC 0.75 0.05 1.37 0.10 (2 SIDES) 0.00 - 0.05 BOTTOM VIEW--EXPOSED PAD NOTE: 1. DRAWING IS NOT A JEDEC PACKAGE OUTLINE 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 3060fc For more information www.linear.com/LT3060 23 LT3060 Series Package Description Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. TS8 Package 8-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1637 Rev A) 0.40 MAX 2.90 BSC (NOTE 4) 0.65 REF 1.22 REF 1.4 MIN 3.85 MAX 2.62 REF 2.80 BSC 1.50 - 1.75 (NOTE 4) PIN ONE ID RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.22 - 0.36 8 PLCS (NOTE 3) 0.65 BSC 0.80 - 0.90 0.20 BSC 0.01 - 0.10 1.00 MAX DATUM `A' 0.30 - 0.50 REF 0.09 - 0.20 (NOTE 3) 1.95 BSC TS8 TSOT-23 0710 REV A NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 3060fc 24 For more information www.linear.com/LT3060 LT3060 Series Revision History REV DATE DESCRIPTION PAGE NUMBER A 7/10 Added fixed voltage options for 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5V B 5/11 Extended MP-Grade to 150C Updated test conditions for ADJ Pin Bias Current and Reverse Output Current in Applications Information section C 9/14 Added fixed voltage options for 15V Updated available packaging in Related Parts section 1-26 2-7 19-20 1 to 14, 17, 21 26 3060fc Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representaFor more information www.linear.com/LT3060 tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. 25 LT3060 Series Typical Application 12V Low Noise Regulator IN VIN 13V TO 45V 1F OUT 2.37M 1% LT3060 SHDN ADJ GND REF/BYP CFF 10nF VOUT 12V AT 100mA 30VRMS NOISE 10F 124k 1% 10nF 3060 TA04 OUTPUT VOLTAGE DEVIATION 50mV/DIV VIN = 13V CFF = 0 CFF = 10nF LOAD IL = 10mA TO 100mA CURRENT 100mA/DIV 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 TIME (ms) 3060 TA04b Related Parts PART NUMBER DESCRIPTION COMMENTS LT1761 100mA, Low Noise LDO 300mV Dropout Voltage, Low Noise: 20VRMS , VIN = 1.8V to 20V, ThinSOT Package LT1762 150mA, Low Noise LDO 300mV Dropout Voltage, Low Noise: 20VRMS , VIN = 1.8V to 20V, MS8 Package LT1763 500mA, Low Noise LDO 300mV Dropout Voltage, Low Noise: 20VRMS , VIN = 1.8V to 20V, SO8 and 4mm x 3mm DFN Packages LT1764/ LT1764A 3A, Fast Transient Response, Low Noise LDO 340mV Dropout Voltage, Low Noise: 40VRMS , VIN = 2.7V to 20V, TO-220 and DD Packages, LT1764A Version Stable Also with Ceramic Capacitors LT1962 300mA, Low Noise LDO 270mV Dropout Voltage, Low Noise: 20VRMS , VIN = 1.8V to 20V, MS8 Package LT1963/ LT1963A 1.5A Low Noise, Fast Transient Response LDO 340mV Dropout Voltage, Low Noise: 40VRMS , VIN = 2.5V to 20V, LT1963A Version Stable with Ceramic Capacitors; TO-220, DD, SOT-223 and SO8 Packages LT1964 200mA, Low Noise, Negative LDO 340mV Dropout Voltage, Low Noise 30VRMS , VIN = -1.8V to -20V, ThinSOT and 3mm x 3mm DFN Packages LT1965 1.1A, Low Noise, Low Dropout Linear Regulator 290mV Dropout Voltage, Low Noise: 40VRMS , VIN: 1.8V to 20V, VOUT: 1.2V to 19.5V, Stable with Ceramic Capacitors; TO-220, DD-Pak, MSOP and 3mm x 3mm DFN Packages LT3008 20mA, 45V, 3A IQ Micropower LDO 300mV Dropout Voltage, Low IQ: 3A, VIN = 2V to 45V, VOUT = 0.6V to 39.5V; ThinSOT and 2mm x 2mm DFN-6 Packages LT3009 20mA, 3A IQ Micropower LDO 280mV Dropout Voltage, Low IQ: 3A, VIN = 1.6V to 20V, 2mm x 2mm DFN and SC70 Packages LT3050 100mA, Low Noise Linear Regulator with Precision Current Limit and Diagnostic Functions. 340mV Dropout Voltage, Low Noise: 30VRMS , VIN: 1.6V to 45V, VOUT: 0.6V to 44.5V, Programmable Precision Current Limit: 5%, Programmable Minimum IOUT Monitor, Output Current Monitor, Fault Indicator, Reverse Protection; 12-Lead 2mm x 3mm DFN and MSOP Packages. LT3080/ LT3080-1 1.1A, Parallelable, Low Noise, Low Dropout Linear Regulator 300mV Dropout Voltage (2-Supply Operation), Low Noise: 40VRMS , VIN : 1.2V to 36V, VOUT: 0V to 35.7V, Current-Based Reference with 1-Resistor VOUT Set; Directly Parallelable (No Op Amp Required), Stable with Ceramic Capacitors; TO-220, SOT-223, MSOP and 3mm x 3mm DFN Packages; LT3080-1 Version Has Integrated Internal Ballast Resistor LT3082 200mA, Parallelable, Single Resistor, Low Dropout Linear Regulator Outputs May Be Paralleled for Higher Output, Current or Heat Spreading, Wide Input Voltage Range: 1.2V to 40V Low Value Input/Output Capacitors Required: 0.22F, Single Resistor Sets Output Voltage, Initial Set Pin Current Accuracy: 1%, Low Output Noise: 40VRMS (10Hz to 100kHz) Reverse-Battery Protection, Reverse-Current Protection; 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm x 3mm DFN Packages LT3085 500mA, Parallelable, Low Noise, Low Dropout Linear Regulator 275mV Dropout Voltage (2-Supply Operation), Low Noise: 40VRMS, VIN: 1.2V to 36V, VOUT: 0V to 35.7V, Current-Based Reference with 1-Resistor VOUT Set, Directly Parallelable (No Op Amp Required), Stable with Ceramic Capacitors; MS8E and 2mm x 3mm DFN-6 Packages LT3092 200mA 2-Terminal Programmable Current Source Programmable 2-Terminal Current Source, Maximum Output Current: 200mA, Wide Input Voltage Range: 1.2V to 40V, Resistor Ratio Sets Output Current, Initial Set Pin Current Accuracy: 1%, Current Limit and Thermal Shutdown Protection, Reverse-Voltage Protection, Reverse-Current Protection; 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm x 3mm DFN Packages 3060fc 26 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 For more information www.linear.com/LT3060 (408) 432-1900 FAX: (408) 434-0507 www.linear.com/LT3060 LT 0914 REV C * PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2010