NJM2387 Datasheet, PDF (1/10 Pages) New Japan Radio – ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR

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
Output Current
∆V_I-O=0.2V typ. at Io=0.5A
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
12 3 4 5
NJM2387DL2
3
PIN FUNCTION
1.V_IN
2.ON/OFF CONTROL
12 3 4 5
3.V_OUT
4.V_ADJ
5.GND
NJM2387DL3
EQUIVALENT CIRCUIT
PIN FUNCTION
1. V_IN
2. V_OUT
3. GND
4. V_ADJ
12 3 4
NJM2389F
VIN
VOUT ^VIN
VOUT
Control
GND
Bandgap
Reference
ON/OFF
control
Over Voltage
Protection
Thermal Over Current
Protection Protection
NJM2387DL2/DL3
VADJ
GND
Bandgap
Reference
Over Voltage
Protection
Thermal Over Current
Protection Protection
VADJ
NJM2389F
Ver.2004-12-22
-1-