NJM2387

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 3 123 45 123 45 PIN FUNCTION 1.VIN 2.ON/OFF CONTROL 3.VOUT 4.VADJ 5.GND PIN FUNCTION 1. VIN 2. VOUT 3. GND 4. VADJ 123 4 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<50°C) Operating Junction Temperature Range Tj -40 ∼ +150 °C Operating Temperature Range Topr -40 ∼ +85 °C Storag...