General Description

The AS1353/AS1356 are high-performance, fixed-voltage linear LDOs designed for use with capacitors of 1 to 10µF. The devices can deliver superior performance even under low dropout conditions when the power transistor operates in linear mode.

The integrated P-channel MOSFET output allows the devices to maintain a low supply-current at loads of up to150mA. A shutdown mode includes logic-controlled circuitry which reduces shutdown current to less than 1µA (max).

Key Features

■ Ultra-Low Dropout Voltage: 40mV @ 100mA load

■ Output Voltage Range: +1.5 to +3.6V (100mV steps)

■ Max Output Current: 150mA

■ Output Voltage Accuracy: ±1

■ Low Shutdown Current: 1µA

■ High PSRR: 60dB at 100Hz

■ Integrated Overtemperature/Overcurrent Protection

■ Reverse-Battery Protection (AS1353/AS1356)

■ Power-OK Output (AS1356)

■ Minimal External Components Required

■ Operating Temperature Range: -40 to +85°C

■ 5-pin SOT23 Package

Applications

The devices are ideal for powering cordless and mobile phones, MP3 players, CD and DVD players, PDAs, handheld computers, digital cameras, and any other hand-held and/or battery-powered device.