NJM2831
LOW DROPOUT VOLTAGE REGULATOR
ꢀ GENERAL DESCRIPTION
ꢀ PACKAGE OUTLINE
The NJM2831 is a 100mA output low dropout voltage regulator
with ON/OFF control.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
NJM2831F
2.1V to 15.5V output voltage range, 1µF small decoupling
capacitor, built-in noise bypass capacitor make the NJM2831
suitable for various applications.
ꢀ FEATURES
ꢁ Output voltage options available
ꢁ High Ripple Rejection
2.1 ∼ 15.5V (0.1V step)
75dB typ. (f=1kHz Vo=3V Version)
Vno=45µVrms typ.
ꢁ Output Noise Voltage
ꢁ Output capacitor with 1.0µF ceramic capacitor (Vo≥5.1V)
ꢁ Output Current
Io(max.)=100mA
ꢁ High Precision Output
ꢁ Low Dropout Voltage
ꢁ ON/OFF Control
Vo±1.0%
0.10V typ. (Io=60mA)
(Active High)
ꢁ Internal Short Circuit Current Limit
ꢁ Internal Thermal Overload Protection
ꢁ Bipolar Technology
ꢁ Package Outline
SOT-23-5
ꢀ PIN CONFIGURATION
1. CONTROL
2. GND
3. NC
5
1
4
4. VOUT
5. VIN
2 3
NJM2831
ꢀ EQUIVALENT CIRCUIT
VIN
Control
VOUT
Thermal
Protection
Bandgap
Reference
GND
Ver.2008-12-02
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