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General Description

The AAT3220 PowerLinear NanoPower low dropout (LDO) linear regulator is ideal for portable applications where extended battery life is critical. This device features extremely low quiescent current, typically 1.1?A. Dropout voltage is also very low, typically less than 225mV at the maximum output current of 150mA. The AAT3220 has output short-circuit and over-current protection. In addition, the device also has an over-temperature protection circuit which will shut down the LDO regulator during extended over-current events.

Features

? 1.1?A Quiescent Current

? Low Dropout: 200mV (typ)

? Guaranteed 150mA Output

? High Accuracy: ±2.0

? Current Limit and Over-Temperature Protection

? Low Temperature Coefficient

? Factory-Programmed Output Voltages: 1.8V to 3.5V

? Stable Operation With Virtually Any Output Capacitor Type

? 3-Pin SOT-89 or SC59 Package

? 4kV ESD Rating

Applications

? Cellular Phones

? Digital Cameras

? Handheld Electronics

? Notebook Computers

? PDAs

? Portable Communication Devices

? Remote Controls