NJU7780 Datasheet, PDF (1/6 Pages) New Japan Radio – LOW DROPOUT VOLTAGE REGULATOR

NJU7780/81
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJU7780/81 is a low dropout voltage regulator with ON/OFF
Control.
Advanced CMOS technology achieves low quiescent current.
It is suitable for cellular phone and other portable items.
When the ON/OFF control is used, NJU7781 has high transition
response characteristics for shunt switch.
FEATURES
High Ripple Rejection
65dB typ. (f=400Hz, Vo=3V)
Low quiescent Current
Iq=20µA (Io=0mA, V_CONT=V_IN)
Output capacitor with 1.0µF ceramic capacitor
Output Current
Io(max)=300mA
High Precision Output
Vo±1.0%
Low Dropout Voltage
0.15V typ. (Io=150mA,Vo=3.0V)
ON/OFF Control
(Active High)
Shunt Switch
Only NJU7781
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
CMOS technology
Package outline
SOT-89-5
PIN CONFIGURATION
524
123
1. CONTROL
2. GND
3. N.C.
4. VOUT
5. VIN
PACKAGE OUTLINE
NJU7780/81U1
EQUIVALENT CIRCUIT
VIN
CONTROL
Output
Control
Thermal
Protection
VOUT
VIN
CONTROL
Output
Control
Thermal
Protection
VOUT
GND
Current
Vref
Limit
NJU7780
GND
Current
Vref
Limit
NJU7781
Ver.2004-12-22
-1-