
Micrel
General Description
The MIC5320 is a tiny Dual Ultra Low-Dropout (ULDO™) linear regulator ideally suited for portable electronics. It is ideal for general purpose/ digital applications which require high power supply ripple rejection (PSRR) >65dB, eliminating the need for a bypass capacitor and providing two enable pins for maximum flexibility. The MIC5320 integrates two highperformance; 150mA ULDOs into a tiny 6-pin 1.6mm x 1.6mm leadless MLF® package, which 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 MLF® leadless package
• Low cost TSOT-23-6 package
• Independent enable pins
• PSRR – >65dB on each LDO
• 150mA output current per LDO
• µCap stable with 1µF ceramic capacitor
• Low quiescent current – 85µA per output
• Fast turn-on time – 30µs
• Thermal shutdown protection
• Current limit protection
APPLICATIONs
• Mobile phones
• PDAs
• GPS receivers
• Portable electronics
• Portable media players
• Digital still and video cameras