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General Description

The AAT3238 MicroPower low dropout (LDO) linear regulator is ideally suited for portable applications where very fast transient response, extended battery life, and small size are critical. The AAT3238 has been specifically designed for high-speed turn-on and turn-off performance, fast transient response, good power supply ripple rejection (PSRR), and is reasonably low noise, making it ideal for powering sensitive circuits with fast switching requirements.

Features

? Low Dropout: 400mV at 300mA

? Guaranteed 300mA Output

? High Accuracy: ±1.5

? 70?A Quiescent Current

? Fast Line and Load Transient Response

? High-Speed Device Turn-On and Shutdown

? High Power Supply Ripple Rejection

? Low Self Noise

? Short-Circuit Protection

? Over-Temperature Protection

? Uses Low Equivalent Series Resistance (ESR) Ceramic Capacitors

? Noise Reduction Bypass Capacitor

? Shutdown Mode for Longer Battery Life

? Low Temperature Coefficient

? Factory-Programmed Output Voltages

? SOT23 6-Pin or SC70JW 8-Pin Package

Applications

? Cellular Phones

? Digital Cameras

? Notebook Computers

? Personal Portable Electronics

? Portable Communication Devices