AAT3238 300mA MicroPowerTM High Performance LDO Linear Regulator

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. Other features include low quiescent current, typically 70μA, and low dropout voltage, typically less than 400mV at the maximum output current level of 300mA. The device is output short-circuit protected and has a thermal shutdown circuit for additional protection under extreme operating conditions. The AAT3238 also features a low-power shutdown mode for extended battery life. A reference bypass pin has been provided to improve PSRR performance and output noise by connecting a small external capacitor from the AAT3238’s reference output to ground. The AAT3238 is available in a Pb-free, space-saving 6-pin SOT23 or 8-pin SC70JW package in factory-programmed voltages.

技术特性

Low Dropout: 400mV at 300mA
Guaranteed 300mA Output
High Accuracy: ±1.5%
70μA 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

订购信息 Ordering Information

AAT3238

应用领域 APPLICATION

Cellular Phones
Digital Cameras
Notebook Computers
Personal Portable Electronics
Portable Communication Devices

AAT3238 典型应用

应用技术支持与电子电路设计开发资源下载	版本信息	大小
AAT3238 数据资料DataSheet下载:pdf	Rev.V2	2 页