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| NJM2391 LOW DROPOUT VOLTAGE REGULATOR I GENERAL DESCRIPTION The NJM2391 is low dropout voltage regulators featuring high precision voltage. It is suitable for Notebook PCs, PC cards and hard disks where 3.3V need to be generated from 5V supply. A small TO-252 package is adopted for the space saving. I PACKAGE OUTLINE 2 3 1 NJM2391DL1 1. IN 2. GND 3. OUT I FEATURES GOutput Current Io(max.)=1A GHigh Precision Output Voltage Vo1% GLow Dropout Voltage VI-O =1.1V typ. At Io=1A GInternal Excessive Voltage Protection Circuit GInternal Short Circuit Current Limit GInternal Thermal Overload Protection GBipolar Technology GPackage Outline TO-252 I ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage V+ Power Dissipation Operating Temperature Storage Temperature PD Topr Tstg RATINGS +10 8 (Tc=25C) TO-252 0.8(Ta25C) -40 ~ +85 -50 ~ +125 (Ta=25C) UNIT V W C C I OUTPUT VOLTAGE RANK LIST Device Name VOUT NJM2391DL1-25 2.5V NJM2391DL1-26 2.6V NJM2391DL1-28 2.85V NJM2391DL1-03 3.0V NJM2391DL1-33 3.3V NJM2391DL1-35 3.5V NJM2391DL1-05 5.0V NJM2391 I ELECTRICAL CHARACTERISTICS (CIN=0.1F, Co=10F, Tj=25C) Measurement is to be conducted is pulse testing PARAMETER SYMBOL TEST CONDITION Vo=2.5V Version VO VIN=5.5V, Io=0.01A Output Voltage VIN=4V~9V, Io=1A Line Regulation Vo-VIN VIN=5. 5V, Io=0~1A Load Regulation Vo-Io Quiescent Current IQ VIN=5.5V, Io=0A VIN=5.5V, ein=2VP-P RR Ripple Rejection f=120Hz, Io=0.5A Io=1A Dropout Voltage VI-O VIN=5.5V, Io=0.5A VNO Output Noise Voltage BW=10Hz~100kHz Vo=2.6V Version VO VIN=5.6V, Io=0.01A Output Voltage VIN=4.1V~9.1V, Io=1A Line Regulation Vo-VIN VIN=5.6V, Io=0~1A Load Regulation Vo-Io Quiescent Current IQ VIN=5.6V, Io=0A VIN=5.6V, ein=2VP-P RR Ripple Rejection f=120Hz, Io=0.5A Io=1A Dropout Voltage VI-O VIN=5.6V, Io=0.5A VNO Output Noise Voltage BW=10Hz~100kHz Vo=2.85V Version VO VIN=5.85V, Io=0.01A Output Voltage VIN=4.35V~9.35V, Io=1A Line Regulation Vo-VIN VIN=5.85V, Io=0~1A Load Regulation Vo-Io Quiescent Current IQ VIN=5.85V, Io=0A VIN=5.85V, ein=2VP-P RR Ripple Rejection f=120Hz, Io=0.5A Io=1A Dropout Voltage VI-O VIN=5.85V, Io=0.5A VNO Output Noise Voltage BW=10Hz~100kHz Vo=3V Version VO VIN=6V, Io=0.01A Output Voltage VIN=4.5V~9.5V, Io=1A Line Regulation Vo-VIN VIN=6V, Io=0~1A Load Regulation Vo-Io Quiescent Current IQ VIN=6V, Io=0A VIN=6V, ein=2VP-P RR Ripple Rejection f=120Hz, Io=0.5A Io=1A Dropout Voltage VI-O VIN=6V, Io=0.5A VNO Output Noise Voltage BW=10Hz~100kHz MIN. 2.475 - - - 53 - - 2.574 - - - 53 - - 2.82 - - - 53 - - 2.97 - - - 52 - - TYP. 2.5 - - 2.3 63 1.1 85 2.60 - - 2.3 63 1.1 87 2.85 - - 2.3 63 1.1 90 3.00 - - 2.3 62 1.1 95 MAX. 2.525 50 50 4.0 - 1.2 185 2.626 52 52 4.0 - 1.2 187 2.88 57 57 4.0 - 1.2 190 3.03 60 60 4.0 - 1.2 195 UNIT V mV mV mA dB V V V mV mV mA dB V V V mV mV mA dB V V V mV mV mA dB V V NJM2391 I ELECTRICAL CHARACTERISTICS (CIN=0.1F, Co=10F, Tj=25C) Measurement is to be conducted is pulse testing PARAMETER SYMBOL TEST CONDITION Vo=3.3V Version VO VIN=6.3V, Io=0.01A Output Voltage VIN=4.8V~9.8V, Io=1A Line Regulation Vo-VIN VIN=6.3V, Io=0~1A Load Regulation Vo-Io Quiescent Current IQ VIN=6.3V, Io=0A VIN=6.3V, ein=2VP-P RR Ripple Rejection f=120Hz, Io=0.5A Io=1A Dropout Voltage VI-O VIN=6.3V, Io=0.5A VNO Output Noise Voltage BW=10Hz~100kHz Vo=3.5V Version VO VIN=6.5V, Io=0.01A Output Voltage VIN=5V~10V, Io=1A Line Regulation Vo-VIN VIN=6.5V, Io=0~1A Load Regulation Vo-Io Quiescent Current IQ VIN=6.5V, Io=0A VIN=6.5V, ein=2VP-P RR Ripple Rejection f=120Hz, Io=0.5A Io=1A Dropout Voltage VI-O VIN=6.5V, Io=0.5A VNO Output Noise Voltage BW=10Hz~100kHz Vo=5V Version VO VIN=8V, Io=0.01A Output Voltage VIN=6.5V~9.5V, Io=1A Line Regulation Vo-VIN VIN=8V, Io=0~1A Load Regulation Vo-Io Quiescent Current IQ VIN=8V, Io=0A VIN=8V, ein=2VP-P RR Ripple Rejection f=120Hz, Io=0.5A Io=1A Dropout Voltage VI-O VIN=8V, Io=0.5A VNO Output Noise Voltage BW=10Hz~100kHz MIN. 3.267 - - - 52 - - 3.465 - - - 52 - - 4.95 - - - 50 - - TYP. 3.30 - - 2.3 62 1.1 100 3.50 - - 2.3 62 1.1 105 5.00 - - 2.3 60 1.1 150 MAX. 3.333 66 66 4.0 - 1.2 200 3.535 70 70 4.0 - 1.2 205 5.05 60 100 4.0 - 1.2 260 UNIT V mV mV mA dB V V V mV mV mA dB V V V mV mV mA dB V V NJM2391 ITEST CIRCUIT 1.Output Voltage / Line Regulation / Load Regulation Quiescent Current / Dropout Voltage / Output Noise Voltage VIN VOUT NJM2391 GND + 10F RL BPF A IIN VIN + 0.1F A IOUT V VOUT V.V VNO 2.Ripple Rejection ein=2Vp-p f=120Hz + VIN 0.1F VIN NJM2391 GND VOUT + 10F RL A IOUT V.V eo RR=20log10[ein/eo] (dB) IPOWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2391DL1 (Topr=-40~+85C,Tj=125C,PD=8W(TC=25C),PD=0.8W(Ta=25C)) 10 Power Dissipation P D(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) NJM2391 IELECTRICAL CHARACTERISTICS NJM2391 IELECTRICAL CHARACTERISTICS NJM2391 [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. |
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