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General Description

The AP2127 Series are positive voltage regulator ICs fabricated by CMOS process.

The AP2127 Series have features of low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices.

AP2127 has 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.2V, 4.75V, 5.2V fixed voltage versions and 0.8V to 5.5V adjustable voltage versions.

AP2127 series are available in SOT-23-5 Package.

Features

· Wide Operating Voltage: 2.5V to 6V

· High Output Voltage Accuracy: ±2

· High Ripple Rejection:

68dB@ f=1kHz, 54dB@ f=10kHz

· Low Standby Current: 0.1?A

· Low Dropout Voltage: 170mV@300mA for

VOUT=3.3V, 140mV@300mA for VOUT=5.2V

· Low Quiescent Current: 60?A Typical

· Low Output Noise: 60?Vrms@VOUT=0.8V

· Short Current Limit: 50mA

· Over Temperature Protection

· Compatible with Low ESR Ceramic Capacitor:

1?F for CIN and COUT

· Excellent Line/Load Regulation

· Soft Start Time: 50?s

· Auto Discharge Resistance: RDS(ON)=60?

Applications

· Datacom

· Notebook Computers

· Mother Board