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. PACKAGE OUTLINE 2 3 1 NJM2391DL1 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 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage V+ Power Dissipation Operating Temperature Storage Temperature PD Topr Tstg 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 RATINGS +10 8 (Tc=25C) TO-252 0.8(Ta25C) -40 ~ +85 -50 ~ +125 (Ta=25C) UNIT V W C C 1. IN 2. GND 3. OUT 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 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 V Line Regulation Vo-VIN IN=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. TYP. MAX. UNIT 2.475 - - - 2.5 - - 2.3 2.525 50 50 4.0 mV mV mA 53 63 - dB - 1.1 1.2 V - 85 185 V 2.574 - - - 2.60 - - 2.3 2.626 52 52 4.0 mV mV mA 53 63 - dB - 1.1 1.2 V - 87 187 V 2.82 - - - 2.85 - - 2.3 2.88 57 57 4.0 mV mV mA 53 63 - dB - 1.1 1.2 V - 90 190 V 2.97 - - - 3.00 - - 2.3 3.03 60 60 4.0 mV mV mA 52 62 - dB - 1.1 1.2 V - 95 195 V V V 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 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. TYP. MAX. UNIT 3.267 - - - 3.30 - - 2.3 3.333 66 66 4.0 mV mV mA 52 62 - dB - 1.1 1.2 V - 100 200 V 3.465 - - - 3.50 - - 2.3 3.535 70 70 4.0 mV mV mA 52 62 - dB - 1.1 1.2 V - 105 205 V 4.95 - - - 5.00 - - 2.3 5.05 60 100 4.0 mV mV mA 50 60 - dB - 1.1 1.2 V - 150 260 V V V V NJM2391 TEST CIRCUIT 1.Output Voltage / Line Regulation / Load Regulation Quiescent Current / Dropout Voltage / Output Noise Voltage VIN A IIN VOUT NJM2391 + BPF A IOUT + V VOUT GND 0.1F VIN 10F RL 2.Ripple Rejection VIN ein=2Vp-p f=120Hz + VOUT NJM2391 A IOUT + GND V.V 0.1F VIN eo 10F RL 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)) Power Dissipation P D(W) 10 8 6 Heat Sink HS=5C/W HS=10C/W 4 2 0 -50 HS=20C/W Without Heat Sink -25 0 25 50 Ambient Temperature Ta(C) 75 100 V.V VNO 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.