NJM2391 LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION PACKAGE OUTLINE 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. NJM2391DL1 A small TO-252 package is adopted for the space saving. FEATURES z Output Current Io(max.)=1A z High Precision Output Voltage Vo 1% z Low Dropout Voltage V =1.1V typ. At Io=1A I-O z Internal Excessive Voltage Protection Circuit z Internal Short Circuit Current Limit z Internal Thermal Overload Protection z Bipolar Technology z Package Outline TO-252 PIN CONFIGURATION 2 PIN FUNCTION 1.V IN 2.GND 3.V OUT 1 3 NJM2391DL1 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATINGS UNIT + Input Voltage V +10 V 900(*1) Power Dissipation P W D 2500(*2) Operating Temperature Topr 40 ~ +85 C Storage Temperature Tstg 50 ~ +125 C 2 (*1): Mounted on glass epoxy board. (76.2 114.3 1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm ) (*2): Mounted on glass epoxy board. (76.2 114.3 1.6mm:based on EIA/JDEC standard, 4Layers) (For 4Layers: Applying 74.2 74.2mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5) OUTPUT VOLTAGE RANK LIST Device Name V Device Name V OUT OUT NJM2391DL1-25 2.5V NJM2391DL1-33 3.3V NJM2391DL1-26 2.6V NJM2391DL1-35 3.5V NJM2391DL1-28 2.85V NJM2391DL1-05 5.0V NJM2391DL1-03 3.0V NJM2391 ELECTRICAL CHARACTERISTICS (C =0.1F, Co=10F, Tj=25C) IN Measurement is to be conducted is pulse testing PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Vo=2.5V Version V V =5.5V, Io=0.01A 2.475 2.5 2.525 V O IN Output Voltage Line Regulation Vo/ V V =4V~9V, Io=1A 50 mV IN IN V =5. 5V, Io=0~1A 50 mV Load Regulation Vo/ Io IN Quiescent Current I V =5.5V, Io=0A 2.3 4.0 mA Q IN V =5.5V, ein=2V - IN P P Ripple Rejection RR 53 63 dB f=120Hz, Io=0.5A Dropout Voltage V Io=1A 1.1 1.2 V I-O V =5.5V, Io=0.5A IN Output Noise Voltage V 85 185 V NO BW=10Hz~100kHz Vo=2.6V Version V V =5.6V, Io=0.01A 2.574 2.60 2.626 V O IN Output Voltage Line Regulation Vo/ V V =4.1V~9.1V, Io=1A 52 mV IN IN Load Regulation Vo/ Io V =5.6V, Io=0~1A 52 mV IN Quiescent Current I V =5.6V, Io=0A 2.3 4.0 mA Q IN V =5.6V, ein=2V - IN P P Ripple Rejection RR 53 63 dB f=120Hz, Io=0.5A Dropout Voltage V Io=1A 1.1 1.2 V I-O V =5.6V, Io=0.5A IN Output Noise Voltage V 87 187 V NO BW=10Hz~100kHz Vo=2.85V Version V V =5.85V, Io=0.01A 2.82 2.85 2.88 V O IN Output Voltage Line Regulation V =4.35V~9.35V, Io=1A 57 mV Vo/ V IN IN Load Regulation Vo/ Io V =5.85V, Io=0~1A 57 mV IN Quiescent Current I V =5.85V, Io=0A 2.3 4.0 mA Q IN V =5.85V, ein=2V - IN P P Ripple Rejection RR 53 63 dB f=120Hz, Io=0.5A Dropout Voltage V Io=1A 1.1 1.2 V I-O V =5.85V, Io=0.5A IN Output Noise Voltage V 90 190 V NO BW=10Hz~100kHz Vo=3V Version V V =6V, Io=0.01A 2.97 3.00 3.03 V O IN Output Voltage Line Regulation Vo/ V V =4.5V~9.5V, Io=1A 60 mV IN IN Load Regulation V =6V, Io=0~1A 60 mV Vo/ Io IN Quiescent Current I V =6V, Io=0A 2.3 4.0 mA Q IN V =6V, ein=2V - IN P P Ripple Rejection RR 52 62 dB f=120Hz, Io=0.5A Dropout Voltage Io=1A 1.1 1.2 V V I-O V =6V, Io=0.5A IN Output Noise Voltage V 95 195 V NO BW=10Hz~100kHz