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| NJM2391 LOW DROPOUT VOLTAGE REGULATOR 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. FEATURES Output Current Io(max.)=1A High Precision Output Voltage Vo1% Low Dropout Voltage VI-O =1.1V typ. At Io=1A Internal Excessive Voltage Protection Circuit Internal Short Circuit Current Limit Internal Thermal Overload Protection Bipolar Technology Package Outline TO-252 PIN CONFIGURATION 2 PACKAGE OUTLINE NJM2391DL1 PIN FUNCTION 1.VIN 2.GND 3.VOUT 3 1 NJM2391DL1 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage V+ Power Dissipation Operating Temperature Storage Temperature PD Topr Tstg (Ta=25C) UNIT V W C C RATINGS +10 8 (Tc=25C) TO-252 0.8(Ta25C) -40 ~ +85 -50 ~ +125 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 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 VIN=5.5V, Io=0.01A VO Output Voltage Line Regulation Vo/VIN VIN=4V~9V, Io=1A 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 Line Regulation Vo/VIN VIN=4.1V~9.1V, Io=1A 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 VIN=5.85V, Io=0.01A VO Output Voltage Line Regulation Vo/VIN VIN=4.35V~9.35V, Io=1A 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 Line Regulation Vo/VIN VIN=4.5V~9.5V, Io=1A 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 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 VIN=6.3V, Io=0.01A VO Output Voltage Line Regulation Vo/VIN VIN=4.8V~9.8V, Io=1A 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 Line Regulation Vo/VIN VIN=5V~10V, Io=1A 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 VIN=8V, Io=0.01A VO Output Voltage Line Regulation Vo/VIN VIN=6.5V~9.5V, Io=1A 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 TEST 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) POWER 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 ELECTRICAL CHARACTERISTICS NJM2391 ELECTRICAL 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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