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| NJM2885 LOW DROPOUT VOLTAGE REGULATOR s GENERAL DESCRIPTION The NJM2885 is low dropout voltage regulator designed for portable application. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. s FEATURES qHigh Ripple Rejection 75dB typ. (f=1kHz) qOutput Noise Voltage Vno=45Vrms qOutput capacitor with 2.2F ceramic capacitor (Vo2.7V) qOutput Current Io(max.)=500mA qHigh Precision Output Vo1.0% qLow Dropout Voltage 0.18V typ. (Io=300mA) qInternal Short Circuit Current Limit qInternal Thermal Overload Protection qBipolar Technology qPackage Outline TO-252 s PIN CONFIGURATION 2 PINFUNCTION 1. IN 2. GND 3. OUT s PACKAGE OUTLINE NJM2885DL1 1 3 NJM2885DL1 s EQUIVALENT CIRCUIT VIN VOUT Thermal Protection Bandgap Reference GND s OUTPUT VOLTAGE RANK LIST Device Name Vout NJM2885DL1-25 2.5V NJM2885DL1-26 2.6V NJM2885DL1-03 3.0V NJM2885DL1-33 3.3V NJM2885DL1-05 5.0V Ver.2003-03-10 -1- NJM2885 s ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Power Dissipation Operating Temperature Storage Temperature PD Topr Tstg (Ta=25C) RATINGS UNIT +14 V 8(Tc=25C) W 0.8(Ta25C) -40 +85 C -40 +125 C s ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.33F, Co=2.2F:Vo2.7V (Co=4.7F: Vo2.6V), Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Io=30mA Output Voltage Vo -1.0% +1.0% V - Io=0mA Quiescent Current 200 300 IQ A - Output Current Io 500 650 mA Vo-0.3V Line Regulation 0.10 %/V Vo/VIN VIN=Vo+1V Vo+6V, Io=30mA - - Load Regulation 0.03 %/mA Vo/Io Io=0 500mA - - Dropout Voltage Io=300mA 0.18 0.28 V VI-O - ein=200mVrms,f=1kHz, Io=10mA Ripple Rejection RR 75 dB - - Vo=3V Version Average Temperature Vo/Ta Ta=0+85C, Io=10mA 50 ppm/C - - Coefficient of Output Voltage f=10Hz80kHz, Io=10mA, Output Noise Voltage VNO 45 Vrms - - Vo=3V Version (note) Please confirm the specification separately because some parameters depend on output voltage. s TEST CIRCUIT A VIN IIN VIN VOUT 0.33uF NJM2885 GND IOUT V VOUT 2.2uF OR 4.7uF(Vo2.6V) (Ceramic Capacitor) s POWER DISSIPATION VS. AMBIENT TEMPERATURE NJU2885DL1 (Topr=-40~+85C,Tj=125C,PD=8W(TC=25C),PD=0.8W(Ta25C)) 10 Power Dissipation PD(W) 8 6 4 2 0 -50 Heat Sink HS=5C/W HS=10C/W HS=20C/W Without Heat Sink -25 0 25 50 75 100 Ambient Temperature Ta(C) -2- Ver.2003-03-10 NJM2885 [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. Ver.2003-03-10 -3- |
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