NJM2387/89 ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM2387/89 are adjustable low dropout voltage regulators . The output current is up to 1.0A and dropout voltage is 0.2V typ. at Io=0.5A. NJM2387 has ON/OFF control circuit and enable to reduce quiescent current. The NJM2387/89 are suitable for power module, TV, Display, car stereo and low power applications. NJM2387DL3 NJM2389F FEATURES Low Dropout Voltage V =0.2V typ. at Io=0.5A I-O Output Current Io(max.)=1.0A Reference Voltage Vref=1.26V 2% ON/OFF Control (Active High : Only NJM2387) Internal Short Circuit Current Limit Internal Overvoltage Protection Internal Thermal Overload Protection Bipolar Technology Package Outline TO-252-5(NJM2387), TO-220F-4(NJM2389) PIN CONFIGURATION GND 5 4 V ADJ 4 V ADJ 3 GND 3 3 V OUT 2 V OUT 2 ON/OFF CONTROL 1 V IN 1 V IN NJM2389F NJM2387DL3 BLOCK DIAGRAM V V V V OUT IN OUT IN Overvoltage Overvoltage Protection Protection CONTROL V VADJ ADJ Bandgap ON/OFF Bandgap Reference Reference Control Thermal Current Thermal Current Protection Limit Limit Protection GND GND NJM2387DL3 NJM2389F Ver.2016-03-29 - 1 - NJM2387/89 ABSOLUTE MAXIMUM RATINGS (Ta=25 C) PARAMETER SYMBOL RATINGS UNIT Input Voltage V +35 V IN Control Voltage V +35(*1) V CONT Adjust Terminal Voltage V +6 V ADJ NJM2387 1190(*2) / 3125(*3) mW Power Dissipation P D NJM2389 W 18(Tc<50 C) Operating Junction Temperature Range Tj -40 +150 C Operating Temperature Range Topr -40 +85 C Storage Temperature Range Tstg -50 +150 C (*1): This applies for NJM2387. When input voltage is less than +35V, the absolute maximum control voltage is equal to the input voltage. 2 (*2): Mounted on glass epoxy board. (76.2 114.3 1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm ) (*3): 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) NJM2387 ELECTRICAL CHARACTERISTICS (V =15V, V =10V, Io=0.5A, R1=1k , C =0.33 F, Co=22 F, Ta=25 C) IN O IN Measurement is to be conducted is pulse testing. PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Input Voltage V - 3.8 - 35 V IN Output Voltage V - 1.5 - 20 V OUT Reference Voltage Vref - 1.235 1.26 1.285 V Line Regulation - 0.04 0.16 %/V Vo/ V V =V +1V V +17V IN IN O O Load Regulation Vo/ Io V =V +2V,Io=0A 1.0A - 0.2 1.4 %/A IN O Average Temperature Vo/ T Tj=0 +125 C - 0.02 - %/ C Coefficient of Output Voltage Quiescent Current I Io=0A - - 5 mA Q Dropout Voltage Io=0.5A - 0.2 0.5 V V I-O Vin=Vo+2V, ein=0.5Vrms Ripple Rejection RR 52 65 - dB ein=0.5Vrms f=120Hz , ON Control Voltage V 2.0(*4) - - V CONT(ON) OFF Control Voltage V - - 0.4 V CONT(OFF) ON Control Current I V =2.7V - - 20 A CONT(ON) C OFF Control Current I V =0.4V - - -20 A CONT(OFF) C (*4): When ON/OFF CONTROL pin is open, Output Voltage is ON. Ver.2016-03-29 - 2 -