NJM2389F

NJM2387/89 ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION 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 is suitable for power module, TV, Display, car stereo and low power applications. PACKAGE OUTLINE NJM2387DL2 NJM2387DL3 NJM2389F FEATURE Low Dropout Voltage ∆VI-O=0.2V typ. at Io=0.5A 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 Thermal Overload Protection Bipolar Technology Package Outline TO-252-5(NJM2387), TO-220F-4(NJM2389) PIN CONFIGURATION 3 3 12345 12345 PIN FUNCTION 1.VIN 2.ON/OFF CONTROL 3.VOUT 4.VADJ 5.GND PIN FUNCTION 1. VIN 2. VOUT 3. GND 4. VADJ 1234 NJM2387DL2 EQUIVALENT CIRCUIT VIN NJM2387DL3 NJM2389F VOUT VIN VOUT Bandgap Reference Bandgap Reference Control ON/OFF control Over Voltage Protection Thermal Over Current Protection Protection VADJ Over Voltage Protection Thermal Over Current Protection Protection VADJ GND GND NJM2387DL2/DL3 NJM2389F Ver.2004-12-22 -1- NJM2387/89 (Ta=25°C) SYMBOL RATINGS UNIT VIN +35 V VCONT +35(*1) V VADJ +6 V Io 1.0 A NJM2387 10(Tc≤25°C) / 1(Ta≤25°C) W Power Dissipation PD NJM2389 18(Tc