NJM2800 Low Dropout Voltage Regulator with Reset GENERAL DISCRIPTION PACKAGE OUTLINE 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. NJM2800F NJM2800U/U1 It is suitable for local power supply and reset for small micro controller and other logic chips. FEATURES z Output Voltage Accuracy Vo = 1.0% z Reset Voltage Accuracy V = 1.0% RT 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 52 4 5 4 1.V 1.V IN OUT 2.GND 2.GND 3.C 3.V OR d 4.V 4.C d OR 1 5.V 2 3 5.V 12 3 OUT IN NJU2800F 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 VIN VOUT Thermal Protection VOR Bandgap Reference GND Cd NJM2800 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATINGS UNIT Input Voltage V +14 V IN 350(*1) SOT-23-5 Power Dissipation P mW D 200(*2) SOT89-5 350(*2) Operating Temperature Topr 40+85 C Storage Temperature Tstg 40+125 C (*1): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers) (*2): Device itself. Operating voltage V =+2.3 +14V (In case of Vo<2.1V version) IN ELECTRICAL CHARACTERISTICS (V =Vo+1V, C =0.1F, Co=1F (1.8<Vo2.6V: Co=2.2F, Vo1.8V: Co=4.7F) ,Ta=25C) IN IN PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Quiescent Current I V =Vo+2V, Io=0mA 250 350 A Q IN Regulator Block Output Voltage Io=30mA +1.0% V Vo 1.0% Output Current Vo-0.3V 150 200 mA Io Line Regulation 0.10 %/V Vo/V V =Vo+1VVo+6V, Io=30mA IN IN Load Regulation 0.03 %/mA Vo/Io Io=0100mA Dropout Voltage(*3) Io=60mA 0.10 0.18 V V I 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 45 f=10Hz100kHz, Io=10mA, Vrms V NO Vo=3V Version Reset Block Voltage Detection V =HL 1.0% +1.0% V V RT IN Hysteresis Voltage V =HLH V 3 V 5 V 8 V IN RT RT RT V RTH % % % Low Level Output 100 300 mV R V =V -0.5V, R =100k ORL IN RT L Output Leak Current V = V +0.5V 0.1 I A IN RT ORH On time Output Current 5 mA I V =V -0.5V, R =0 IN RT L ORL Reset Output Delay 9 10 11 ms t V =(V -0.5V) (V +0.5V), C =0.1 F IN RT RT d d Operation Voltage Limit V =0.4V 0.9 V V ORL OPL (*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.