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General Description

The MIC5321 is a tiny Dual Ultra Low-Dropout (ULDO?) linear regulator ideally suited for those applications that require high PSRR because it provides a bypass pin for those noise sensitive portable electronics. The MIC5321 integrates two high-performance; 150mA ULDOs into a very compact 1.6mm x 1.6mm leadless Thin MLF? package that provides exceptional thermal package characteristics.

Features

? 2.3V to 5.5V input voltage range

? Ultra-low dropout voltage ULDO? 35mV @150mA

? Tiny 6-pin 1.6mm x 1.6mm Thin MLF? leadless package

? Low cost TSOT-23-6 package

? Bypass pin for improved noise performance

? High PSRR – >75dB on each LDO

? Ultra low noise output - > 30?Vrms

? Dual 150mA outputs

? ?Cap stable with 1?F ceramic capacitor

? Low quiescent current – 150?A

? Fast turn-on time – 45?s

? Thermal shutdown protection

? Current Limit protection

Applications

? Mobile phones

? PDAs

? GPS receivers

? Portable electronics

? Portable media players

? Digital still and video cameras