NJM2805U1-0543-TE1 Nisshinbo

NJM2805 Low Dropout Voltage Regulator with Reset GENERAL DISCRIPTION PACKAGE OUTLINE The NJM2805 is a low dropout voltage regulator with reset function. It provides up to 300mA of logic supply, and the reset function monitors output voltage of the regulator with 1% accuracy. NJM2805U1 It is suitable for local power supply and reset for small micro controller and other logic chips. PIN CONFIGURATION FEATURES z Output Voltage Accuracy Vo 1.0% PIN FUNCTION 52 4 z Reset Voltage Accuracy V 1.0% RT 1.V OUT z Adjust reset delay time with external capacitor. 2.GND 3.Cd z Ripple Rejection 75dB typ. (f =1kHz) 4.V OR z Output Voltage Monitor type 5.V 12 3 IN z Open Collector Output NJM2805U1 z Internal Short Circuit Current Limit z Internal Thermal Overload Protection z Bipolar Technology z Package Outline SOT-89 -5 OUTPUT VOLTAGE/ DETECTION VOLTAGE Device Name V V OUT DET NJM2805U1-2923 2.9V 2.3V NJM2805U1-3329 3.3V 2.9V NJM2805U1-0543 5.0V 4.3V EQUIVALENT CIRCUIT V V IN OUT Thermal V Protection OR Bandgap Reference GND Cd Ver.2006-02-21 -1- NJM2805 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATINGS UNIT Input Voltage V +14 V IN Power Dissipation P 350 mW D Operating Temperature Topr -40 +85 C Storage Temperature Tstg -40 +125 C ELECTRICAL CHARACTERISTICS (V =Vo+1V, C =0.1 F, Co=1 F (Co=2.2 F: Vo2.6V) Ta=25C) IN IN PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Quiescent Current I Io=0mA 250 350 A Q Regulator Block Output Voltage Vo Io=30mA -1.0% +1.0% V Output Current Io Vo-0.3V 300 400 mA Line Regulation Vo/V V =Vo+1V Vo+6V, Io=30mA 0.10 %/V IN IN Load Regulation Vo/Io Io=0 300mA 0.03 %/mA Dropout Voltage V Io=100mA 0.10 0.18 V I O ein=200mVrms, f=1kHz, Io=10mA, Ripple Rejection RR 75 dB Vo=3V Version Output Voltage Vo/T Ta=0 85C, Io=10mA 50 ppm/C Temperature Coefficient f=10Hz 80kHz, Io=10mA, Output Noise Voltage V 45 Vrms NO Vo=3V Version Reset Block Voltage Detection V V =HL -1.0% +1.0% V RT IN V V V RT RT RT Hysteresis Voltage V V =HLH V RTH IN 3% 5% 8% Low Level Output Voltage R 100 300 mV V =V -0.5V, R =100k ORL IN RT L Output Leak Current I V = V +0.5V 0.1 A ORH IN RT On time Output Current I V =V -0.5V, R =0 5 mA ORL IN RT L Reset Output Delay Time t V =(V -0.5V) (V +0.5V), C =0.1 F 9 10 11 ms d IN RT RT d Operation Voltage Limit V V =0.4V 0.9 V OPL ORL 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. Ver.2006-02-21 - 2 -