NJM2800 Low Dropout Voltage Regulator with Reset GENERAL DISCRIPTION The NJM2800 is a low dropout voltage regulator with reset function. It provides up to 150mA of logic supply, and the reset function monitors input voltage of the regulator with 1% accuracy. It is suitable for local power supply and reset for small micro controller and other logic chips. PACKAGE OUTLINE NJM2800F NJM2800U/U1 FEATURES z Output Voltage Accuracy Vo = 1.0% z Reset Voltage Accuracy VRT = 1.0% z Adjust reset delay time with external capacitor. z Ripple Rejection 60dB typ. (f=1kHz) z Input Voltage Monitor type z Open Collector Output z Internal Short Circuit Current Limit z Internal Thermal Overload Protection z Bipolar Technology z Package Outline SOT89-5 (NJM2800U/U1), SOT-23-5(NJU2800F) PIN CONFIGURATION 5 4 1.VIN 2.GND 3.VOR 4.Cd 1 2 3 5.VOUT NJU2800F 5 1 2 4 1.VOUT 2.GND 3.Cd 4.VOR 5.VIN 2 3 NJU2800U/U1 OUTPUT VOLTAGE/ DETECTION VOLTAGE Device Name Output Voltage Detection Voltage NJM2800U1-/U/F1803 1.8V 3.0V NJM2800U1-/F2528 2.5V 2.8V NJM2800U1-/U/F3342 3.3V 4.2V EQUIVALENT CIRCUIT VOUT VIN Thermal Protection VOR Bandgap Reference GND Cd NJM2800 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Power Dissipation PD Operating Temperature Storage Temperature Topr Tstg (Ta=25C) RATINGS UNIT +14 V 350(*1) SOT-23-5 mW 200(*2) SOT89-5 350(*2) -40+85 -40+125 C C (*1): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers) (*2): Device itself. Operating voltage VIN=+2.3 +14V (In case of Vo<2.1V version) ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1F, Co=1F (1.8<Vo2.6V: Co=2.2F, Vo1.8V: Co=4.7F) ,Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT 250 350 VIN=Vo+2V, Io=0mA Quiescent Current IQ A - Regulator Block Output Voltage Io=30mA +1.0% V -1.0% - Vo Output Current Vo-0.3V 150 200 mA - Io Line Regulation 0.10 %/V - - Vo/VIN VIN=Vo+1VVo+6V, Io=30mA Load Regulation 0.03 %/mA - - Vo/Io Io=0100mA Io=60mA 0.10 0.18 V Dropout Voltage(*3) - VI_O Ripple Rejection ein=200mVrms,f=1kHz,Io=10mA, RR 60 dB - - Vo=3V Version Output Voltage Ta=085C, Io=10mA 50 - - ppm/C Vo/T Temperature Coefficient Output Noise Voltage Reset Block Voltage Detection Hysteresis Voltage Low Level Output Output Leak Current On time Output Current Reset Output Delay Operation Voltage Limit VNO VRT VRTH RORL IORH IORL td VOPL f=10Hz100kHz, Io=10mA, Vo=3V Version - 45 - +1.0% -1.0% - VRTx3 VRTx5 VRTx8 % % % 100 300 VIN=VRT-0.5V, RL=100k - VIN= VRT+0.5V 0.1 - - 5 VIN=VRT-0.5V, RL=0 - - 9 10 11 VIN=(VRT-0.5V) (VRT+0.5V), Cd=0.1F 0.9 VORL=0.4V - - VIN=HL VIN=HLH (*3): The output voltage excludes under 2.1V. The above specification is a common specification for all output voltages. Therefore, it may be different from the individual specification for a specific output voltage. Vrms V V mV A mA ms V NJM2800 TIMING CHART VIN [V] VRTH VRT VO t VO [V] VO t VOR [V] td td td t VOR is the case where a pull-up is carried out to VIN through resistance. NJM2800 TEST CIRCUIT IQ VIN VO IOR NJM2800 RL 0.1F Cd VIN V VOR 1.0F*4 IOUT (Ceramic) GND V 0.1F VOR *4 1.8V<Vo2.6V: Co=2.2F (Ceramic) Vo1.8V: Co=4.7F (Ceramic) TYPICAL APPLICATIONS VIN VIN VOUT VO NJM2800 100k 0.1F Cd 1.0F*5 VOR VOR GND 0.1F *5 1.8V<Vo2.6V: Co=2.2F Vo1.8V: Co=4.7F POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2800F Power Dissipation (Topr=-40+85,Tj=125) Power Dissipation PD(mW) 500 On Board(114.3x76.2x1.6mm, FR-4) 400 300 Device itself 200 100 0 -50 -25 0 25 50 Ambient Temperature Ta() 75 100 VOUT NJM2800 ELECTRICAL CHARACTERISTICS NJM2800_3.3V Output Voltage vs. Input Voltage 3.5 NJM2800_3.3V Output Voltage vs. Output Current 4 o @:Ta=25 C Co=1F(Ceramic) Cd=0.1F 3.5 3.4 Output Voltage :Vo [V] Output Voltage : Vo (V) 3 Io=0A 3.3 3.2 Io=30mA 2.5 2 1.5 1 3.1 o Io=100mA 3 3 3.1 3.2 3.3 @:Ta=25 C V IN=4.3V Co=1.0F(Ceramic) 0.5 3.4 3.5 3.6 0 3.7 0 50 100 NJM2800_3.3V Ground Pin Current v.s. Output Current 20 200 250 300 NJM2800_3.3V Dropout Voltage vs. Output Current 0.3 o @:Ta=25 C Co=1F(Ceramic) Cd=0.1F o @:Ta=25 C VIN=4.3V Co=1.0F(Ceramic) Cd=0.1F 0.25 15 Dropout Voltage:dVI-O (V) Ground Pin Current : IGND (mA) 150 Output Current :Io [mA] Input Voltage : V IN(V) 10 5 0.2 0.15 0.1 0.05 0 0 0 50 100 150 0 200 50 Output Current : I O(mA) NJM2800_3.3V Load Regulation vs. Output Current 0 100 150 200 Output Current:Io(mA) 300 NJM2800_3.3V Peak Output Current vs. Input Voltage o @:Ta=25 C V IN=4.3V Co=1F(Ceramic) Cd=0.1F 250 Peak Output Current : IoMAX(mA) Load Regulation : dVo/dIo(mV) -10 -20 -30 -40 -50 200 150 100 50 o @:Ta=25 C Co=1F(Ceramic) Cp=0.01F 0 0 50 100 Output Current : Io(mA) 150 200 6 8 10 Input Voltage : VIN(V) 12 14 NJM2800 ELECTRICAL CHARACTERISTICS NJM2800_3.3V Quiescent Current v.s. Input Voltage1 NJM2800_3.3V Output Noise Voltage vs. Output Current 100 2000 o @:Ta=25 C VIN=4.3V Cd=0.1F LPF:100kHz o Output Noise Voltage : Vn( Vrms) @:Ta=25 C Output is open. Co=1.0F(Ceramic) Quiescent Current : IQ ( A) 1500 1000 500 5 10 Co=1.0F(Ceramic) 60 40 Co=2.2F(Ceramic) 20 0 0.001 0 0 80 15 0.01 Input Voltage : VIN(V) 90 90 Ripple Rejection Ratio : RR (dB) Ripple Rejection Ratio : RR (dB) 100 100 80 Io=0mA 70 60 Io=30mA 50 o 40 @:Ta=25 C V IN=4.3V ein=200mVrms Co=1F(Ceramic) Cd=0.1F 30 20 10 10k 100k Frequency : f (Hz) 100 Equivalent Serise Resistance : ESR( ) o @:Ta=25 C V IN=4.3V Co=1.0F(Ceramic) 10 STABLE REGION 0.1 0.02 1 10 100 1m Output Current : Io(mA) 100 70 f=1kHz 60 f=10kHz 50 40 o @:Ta=25 C Co=1.0F(Ceramic) Cd=0.1F V IN=4.3V ein=200mVrms 20 0.001 0.01 0.1 1 Output Current : Io (mA) NJM2800_3.3V Equivalent Serise Resistance vs. Output Current 1 10 80 30 1k 100 1 NJM2800_3.3V Ripple Rejection Ratio v.s. Output Current NJM2800_3.3V Ripple Rejection Ratio v.s. Frequency Io=10mA 0.1 Output Current : Io(mA) 10m 100m 10 100 NJM2800 ELECTRICAL CHARACTERISTICS NJM2800_3.3V Dropout Voltage v.s. Temperature 0.3 NJM2800_3.3V Output Voltage vs. Temperature 3.4 VIN=4.3V Io=30mA Co=1F @:VIN=4.3V Io=60mA Co=1F(Ceramic) 0.25 Output Voltage :Vo [V] Dropout Voltage:dVI-O (V) 3.35 0.2 0.15 0.1 3.3 3.25 0.05 3.2 0 -50 0 50 100 -50 150 0 50 100 Temperature : Ta[ C] Temperature : Ta ( C) NJM2800_3.3V Quiescent Current v.s. Temperature NJM2800_3.3V Line Regulation v.s. Temperature 300 0.1 @:dVIN=4.3-9.3V Io=30mA Co=1.0F(Ceramic) 200 150 100 @:VIN=5.3V Output is open. Co=1F(Ceramic) 50 Line Regulation : dVo/dIo (%/V) Quiescent Current : IQ ( A) 250 0.05 0 -0.05 0 -50 0 50 100 -0.1 -50 150 0 o 100 150 Temperature : Ta ( C) NJM2800_3.3V Short Circuit Current v.s. Temperature NJM2800_3.3V Load Regulation v.s. Temperature 100 0.03 @:VIN=4.3V Output is short to ground. Co=1F(Ceramic) @:VIN=4.3V Io=0-100mA Co=1.0F(Ceramic) 0.025 50 o Temperature : Ta ( C) 80 Short Circuit Current : ISC (mA) Load Regulation : dVo/dIo (%/mA) 150 o o 0.02 0.015 0.01 0.005 0 60 40 20 0 -50 0 50 100 o Temperature : Ta ( C) 150 -50 0 50 100 o Temperature : Ta ( C) 150 NJM2800 ELECTRICAL CHARACTERISTICS NJM2800_3.3V/4.2V Output Leak Current v.s Temperature Output Leak Current : IORH ( A) 0.1 100 NJM2800_3.3V/4.2V ON Output Current v.s Temperature VIN=4.7V Co=1F Cd=0.1F RL=100k VIN=3.7V Co=1F Cd=0.1F RL=0 ON Output Current : IORL(mA) 0.075 0.05 0.025 0 75 50 25 0 -50 0 50 100 150 -50 0 o 50 100 Temperature : Ta( C) NJM2800_3.3V/4.2V Reset Output Delay Time v.s Temperature NJM2800_3.3V/4.2V Operation Voltage Limit v.s Temperature 1.5 20 VORL =0.4V Co=1F Cd=0.1F Operation Voltage Limit : VOPL (V) Reset Output Delay Time : td(ms) VIN=3.7V->4.7V Co=1mF Cd=0.1mF 15 10 5 1 0.5 0 0 -50 0 50 100 150 -50 0 o 100 150 Temperature:Ta( C) NJM2800_3.3V/4.2V Voltage Deteston v.s Temperature NJM2800_3.3V/4.2V Low Level Output Voltage v.s Temperature 50 50 o Temperature : Ta( C) 4.4 VIN=3.7V Co=1F Cd=0.1F RL=100k VIN=H->L Co=1F Cd=0.1F 37.5 4.3 Voltage Detection : VRT(V) Low Level Output Voltage : VORL(mV) 150 o Temperature : Ta( C) 25 12.5 4.2 4.1 4 0 -50 0 50 100 o Temperature : Ta( C) 150 -50 0 50 100 o Temperature : Ta( C) 150 NJM2800 ELECTRICAL CHARACTERISTICS 400 NJM2800_3.3V/4.2V Hysteresis Voltage v.s Temperature Hysteresis Voltage : VRT(mV) VIN=H->L->H Co=1F Cd=0.1F 300 200 100 0 -50 0 50 100 150 o Temperature : Ta( C) [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.