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 - > 30µVrms
• Dual 150mA outputs
• µCap stable with 1µF ceramic capacitor
• Low quiescent current – 150µA
• Fast turn-on time – 45µs
• Thermal shutdown protection
• Current Limit protection

Applications
• Mobile phones
• PDAs
• GPS receivers
• Portable electronics
• Portable media players
• Digital still and video cameras