General Description The MIC29150/29300/29500/29750 are high current, high accuracy, low drop out voltage regulators. Using Micrel's proprietary Super Beta PNP process with a PNP pass element, these regulators feature 300mV (full load) dropout voltages and very low ground currents. Designed for high current loads, these devices also find applications in lower current, extremely low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes. The MIC29150/29300/29500/29750 are fully protected against over-current faults, reversed input polarity, reversed lead insertion, over temperature operation, and positive and nega- tive transient voltage spikes. Four and five pin fixed voltage versions feature logic level ON/OFF control and an error flag which signals whenever the output falls out of regulation. Flagged states include low input voltage (dropout), output current limit, overtemperature shutdown, and extremely high voltage spikes on the input. On the MIC29xx1 and MIC29xx2, the ENABLE pin may be tied to Vj, if it is not required for ON/OFF control. MIC29150/300/500/750 Series High Current Low Drop Out Regulators Preliminary InformationProduction Q2 94 Features High Current Capability MIC29150/29151/29152/29153 oo. eee eee eects 1.5A MIC29300/29301/29302/29303 .... MIC29500/29501/29502/29503 .... MIC29750/29751/29752/29753 0... eeeneeee eee 7.5A Low Drop Out Voltage <600mV at Full Load Low Ground Current Accurate 1% Guaranteed Tolerance Reverse-battery and Load Dump Protection Zero-Current Shutdown Mode (4 & 5 Pin versions) Error Flag Signals Output Out-of- Regulation (4 & 5 Pin versions) Also Characterized For Smaller Loads With Industry- Leading Performance Specifications Fixed Voltage and Adjustable Versions Applications Battery Powered Equipment High Efficiency "Green" Computer Systems Automotive Electronics High Efficiency Linear Power Supplies High-Efficiency Post-Regulator For Switching Supply we oon MIC29150/29300BU 12345 MIC29151/29152/29153BU MIC29301/29302/29303BU Pinout On all devices, the Tab is grounded. MIC29150/29300/29500/29750 Three Terminal Pin Configuration i . | Case = Ground (Bottom View) MIC29500/29750BK 123 MIC29150/29300/ 29500BT Case = Ground (Bottom View) 12345 MIC29151/29152/29153BT MIC29301/29302/29303BT MIC29501/29502/29503BT MIC29501/29502/29503BK MIC29751/29752/29753BK Devices: Pin 1 = Input, 2 = Ground, 3 = Output MIC29151/29301/29501/29751 Four & Five Terminal Fixed Voltage Devices: Pin 1 = Enable, 2 = Input, 3 = Ground, 4 = Output, 5 = Flag MIC29152/29302/29502/29752 Adjustable with ON/OFF Control Pin 1 = Enable, 2 = Input, 3 = Ground, 4 = Output, 5 = Adjust M1C29153/29303/29503/29753 Adjustable with Flag Pin 1 = Flag, 2 = Input, 3 = Ground, 4 = Output, 5 = Adjust 6-21MIC29150/29300/29500/29750 Micrel! Ordering Information * Junction Temperature MIC29xx0 versions are three terminal fixed voltage devices. MIC29xx1 are fixed voltage devices with ENABLE and ERROR flag. MiC29xx2 are adjustable regulators with ENABLE control. MIC29xx3 are adjustables with an ERROR flag. Part Number Temp. Range* Volts Current Package Part Number Temp. Range* Volts Current Package MIC29150-3.3BK -40to+125C 3.3 15A TO-3 MIC29302BT ~4010+125C Adj 3.0A TO-220-5 MIC29150-5.0BK -40to+125C 5.0 1.5A TO-3 MIC29302BU 4010 +125C Adj 3.0A TO-263-5 MIC29150-12BK -40to+125C 12 15A TO-3 MIC29303BT -4010+125C Adj 3.0A TO-220-5 MIC29150-3.3BT -40to+125C 3.3 1.5A TO-220 MIC29303BU -4010+125C Adj 3.0A TO-263-5 MiC29150-3.6BT -40t0+125C 36 1.5A TO-220 MIC29500-3.3BK -401t0+125C 3.3 5.0A TO-3 MIC29150-5.0BT -40to+125C 5.0 1.5A TO-220 MIC29500-5.0BK -40to+125C 50 5.0A TO-3 MIC29150-12BT 40to+125C 12 1.5A TO-220 MIC29500-12BK -40t0+125C 12 50A TO-3 MIC29150-3.3BU --40to+125C 3.3 1.5A TO-263 MiC29500-3.3BT -40to+125C 3.3. 5.0A TO-220 MIC29150-5.0BU -40to+125C 50 1.5A TO-263 MiC29500-5.0BT -40to+125C 5.0 50A TO-220 MIC29150-12BU ~40to+125C 12 15A TO-263 MIC29500-12BT -40t0+125C 12 50A TO-220 MIC29151-3.3BK -40to+125C 3.3 15A TO-3-4 MIC29501-3.3BK -40to+125C 3.3 5.0A TO-3-4 MIC29151-5.0BK 40to+125C 50 15A TO-3-4 MIC29501-5.0BK -40to+125C 50 5.0A TO-3-4 MIC29151-12BK -40to+125C 12 15A TO-3-4 MIC29501-12BK -40to+125C 12 50A TQ-3-4 MIC29151-3.3BT -40to+125C 33 15A TO-220-5 MIC29501-3.3BT -40to+125C 3.3 5.0A TO-220-5 MiC29151-3.6BT 40to+125C 36 1.5A TO-220-5 MIC29501-5.0BT -40to+125C 5.0 5.0A TO-220-5 MIC29151-5.0BT -40t0+125C 50 1.5A TO-220-5 MIC29501-12BT -40to+125C 12 5.0A TO-220-5 MIC29151-12BT 4010+125C 12 15A TO-220-5 MIC29501-3.3BU -40to+125C 3.3 50A TO-263-5 MIC29151-3.3BU) - -40 to+125C 393.3 1.5A TO-263-5 MIC29501-5.0BU --40to+125C =5.0 5.0A TO-263-5 MIC29151-5.0BU -40to+125C 50 1.5A TO-263-5 MIC 29501-12BU -40to+125C 12 5.0A TO-263-5 MIC29151-12BU 40to+125C 3812 145A TO-263-5 MIC29502BT -40 to+125C Adj 5.0A TO-220-5 MIC29152BT 40 10 +125C Adj 1.5A TO-220-5 MIC29502BU -40to+125C Adj 5.0A TO-263-5 MIC29152BU 40t0+125C Adj 1.5A TO-263-5 MIC29503BT -40 10 +125C Adj 5.0A TO-220-5 MIC29153BT 40 t0+125C Adj 1.5A TO-220-5 MiC29503BU -40 to +125C Adj 5.0A TO-263-5 MIC29153BU 40 t0+125C Adj 145A TO-263-5 MIC29750-3.3BK -40to+125C 33 75A TO-3 MIC29300-3.3BK -40to+125C 3.3 30A TO-3 MIC29750-5.0BK -40to+125C 5.0 75A TO-3 MIC29300-5.0BK -40to+125C 50 3.0A TO-3 MIC29750-12BK -40t0+125C 12 7.5A TO-3 MIC29300-12BK -40to+125C 12 30A TO-3 MIC29751-3.3BK -40to+125C 33 7.5A TO-3-4 MIC29300-3.3BT -40to+125C 3.3 300A TO-220 MIG29751-5.0BK -40to+125C 50 7.5A TO-3-4 MIC29300-5.0BT -40to+125C 5.0 3.0A TO-220 MIC29751-12BK -40t0+125C 12 7.5A TO-3-4 MIC29300-12BT 40 to +125C 12 30A TO-220 MIC29752BK 40t0+125C Adj 7.5A TO-3-4 MIC29300-3.3BU 40104+125C 3.3 30A TO-263 MIC29753BK -40to+125C Adj 7.5A TO-3-4 MIC29300-5.0BU -40t0+125C 5.0 30A TO-263 MIC29300-12BU 4010+125C 12 30A TO-263 MIC29301-3.3BK -40t0+125C 3.3 30A TO-3-4 MIC29301-5.0BK -40to+125C 50 3.0A TO-3-4 MIC29301-12BK 40t0+125C 12 30A TO-3-4 MIC29301-3.3BT -40to+125C 3.3 3.0A TO-220-5 MIC29301-5.0BT -40to+125C 50 3.0A TO-220-5 MIC29301-12BT 40t0+125C 38912 30A TO-220-5 MIC29301-3.3BU -40to+125C 3.3 3.0A TO-263-5 MIC29301-5.0BU 40t0+125C 5.0 30A TO-263-5 MIC29301-12BU -40to+125C 12 3.0A TO-263-5 6-22MIC29150/29300/29500/29750 Micrel Absolute Maximum Ratings Operating Ratings Power Dissipation... eee Internally Limited | Operating Junction Temperature .............. -40C to +125C Lead Temperature (Soldering, 5 seconds) ..............- 2BOC TO-220 ig veeecessesessencsesseeeeereneeneeenenteeeeerentiteneetanes 2 C/W Storage Temperature Range Input Supply Voltage (Note 1) .... Electrical Characteristics All measurements at T, = 25C uniess otherwise noted. Bold values are guaranteed across the operating temperature range. Parameter Condition Min Typ Max | Units Output Voltage lg = 10mMA -1 1 % 10MA Slo Sle. (Vout + 1V) S Vin $ 25V -2 2 % Line Regulation Ig = 10MA, (Voy + 1V) S Viy S$ 26V 0.06 | 0.5 % Load Regulation Vin = Your + 8, 10MA Iouy < IEULL Loap (Note 6) 0.2 1 % AV, Output Voltage (Note 6) 20 100 | ppm/Cc AT Temperature Coef. Dropout Voltage AVourt =~ 1%, (Note 3) MIC29150 lg = 100mA 80 200 mV lo = 750MA 220 lo =1.5A 600 MIC29300 lq = 100mA 80 175 lo = 1.5A 250 Ig =3A 370 600 MIC29500 lg = 250mA 125 250 9 =2.5A 220 lg = 5A 370 600 MiC29750 lg = 250mA 80 200 lp =4A 240 lg =7.5A 350 600 Ground Current MIC29150 lg = 750MA, Vin = Vout + 1 8 20 mA lo = 1.54 25 MIC29300 lg = 1.5A, Vin = Vout + 1 10 35 mA lg = 3A 37 MIC29500 Ig = 2.5A, Vin. = Voy + 1V 15 50 mA Ig =5A 70 85 MIC29750 14. = 4A, Vin = Vout + 1V 28 75 mA lg =7.5A 70 lenooo Ground Pin V,, = 0.5V less than specified V,.,,.. Igy, = 10MA 180 300 HA Current at Dropout Current Limit MIC29150 Vout = OV (Note 4) 1.5 2.1 A MIC29300 Vout = OV (Note 4) 3.0 45 A MIC29500 Vout = OV (Note 4) 5.0 7.5 A MIC29750 Var = OV (Note 4) 7.5 9.5 A ,, Output Noise C, = 10nF 400 pV RMS Voltage (10Hz to 100kHz) C, = 33yF 260 |, = 100mA 6-23MIC29150/29300/29500/29750 Electrical Characteristics (Continued) Micrel Reference MIC29xx2/MIC29xx3 Parameter Conditions Min | Typical] Max Units Reference Voltage 1.210 1.235 1.260 Vv 1.200 1.270 Vv max Reference Voltage (Note 8) 1.185 1.285 Vv Adjust Pin 20 40 nA Bias Current 60 Reference Voltage (Note 7) 20 ppm/C Temperature Coefficient Adjust Pin Bias 0.1 nArCc Current Temperature Coefficient Error Comparator MIC29xx1/29xx3 Output Leakage Voy = 26V 0.01 1.00 HA Current 2.00 Output Low Deviceset for 5V. Vin =4.5V 220 300 mV Voltage lo, = 250nA 400 Upper Threshold Deviceset for 5V (Note 9) 40 60 mV Voltage 25 Lower Threshold Deviceset for 5V (Note 9) 75 95 mv Voltage 140 Hysteresis Deviceset for 5V (Note 9) 15 mV ENABLE Input MiC29xx1/MIC29xx2 Input Logic Voltage v Low (OFF) 0.8 High (ON) 2.4 ENABLE Pin Veyutpown = 26 15 30 HA Input Current 75 Vsquroown =0-8V - 1 A 2 Regulator Output (Note 10) 10 HA Current in Shutdown 20 6-24MIC29150/29300/29500/29750 Micrel Notes Note1: Maximum positive supply voltage of 60V must be of limited duration (<10Q0msec) and duty cycle (<1%). The maximum continuous supply voltage is 26V. Note 2: Full Load current is defined as 1.5A for the MIC29150, 3A for the MIC29300, 5A for the MIC29500, and 7.5A for the MIC29750 families. Note 3: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with Voy; + 1V applied to Ving Note 4: V/,, is the larger of 8V or Voy7 + 3V Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground pin current. Note 6: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 7: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 200mA load pulse at V,,, = 20V (a 4W pulse) for T = 10ms. Note 82 Vpcr < Vout S (Vin 1 V), 2.3V 5 Vin < 26V, SMA < |, < 1.254, Ty < Ty ax, Note 9: Comparator thresholds are expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain = Voyy Vper = (R1 + R2\V/Re. For example, at a programmed output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95 mV x 5V/1.235 V = 384 mV. Thresholds remain constant as a percent of Voyj7 a8 Voyy is varied, with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed. Note 10: Venagie < 0.8V and Vy < 26V, Voy = 0. Note 11: When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground. Block Diagram Yin Vf OUT ee | woe | Bias ON/OFF - ON/OFF | | @o SENSE uo | | | JOV tual [Fat | Reference + | | ia - rT 4 | | Feeaback4 | | | Thermal kK Shut Down hy | | L. GND Typical Applications 5V + 5%Q_________J 3.3V+1% @ 5A MIC29500-3.3 4 47 UF | | VIN d Vout a5 to + oat + Lei | Vout = 1.235V x [1 + (R1/ R2)] Figure 1. Fixed output voltage. Figure 2. Adjustable output voltage configuration. For best results, the total series resistance should be small enough to pass the minimum regulator load current. 6-25MIC29150/29300/29500/29750 Typical Characteristics MIC29150 Dropout Voltage vs. Output Current Q 0.00 0.25 0.50 0.75 1.00 1.25 1.50 Output Current (A) MIC29150 Ground Current vs. Output Current = = nh th Oo wa o a Ground Current (mA) a 0 0.00 0.25 0.50 0.75 1.00 1.25 1.50 Output Current (A) MIC29300 Dropout Voltage vs. Output Current 0 0.0 1.0 2.0 3.0 Output Current (A} MIC29300 Ground Current vs. Output Current ho wo & ey) fo} o a Ground Current (mA) Q Q 00 05 10 15 20 25 3.0 Output Current (A) MIC29750 Dropout Voltage vs. Output Current o 12 3 4 5 6 7 8 Output Current (A) MIC29750 Ground Current vs. Output Current 80- 70 ' Zoo}. 1 Z50} | 540) | i t I T T 1 i i 1 230 a 20 o 10 ny b --- o 0 12 3 4 5 6 Output Current (A) MI29500 Dropout Voltage vs. Output Current Micrel 0 1 2 3 4 5 Output Current (A} MiIC29500 Ground Current vs. Output Current I oO T | i ! t bor ot bh a @ o Oo ff Ground Current (mA) nN wo o o 9 1 2 3 4 5 Output Current (A) 6-26