MIC5350 Dual 300mA/500mA LDO in 2mm x 2mm Thin MLF General Description Features The MIC5350 is a tiny Dual Ultra Low-Dropout (ULDO) 2.6V to 5.5V input voltage range linear regulator ideally suited for portable electronics due Ultra-low dropout voltage: 75mV 300mA and 125mV to its low output noise. The MIC5350 integrates two high- 500mA performance 300mA (V ) and 500mA (V ) ULDOs OUT1 OUT2 Ultra-low output noise: 30V RMS into a tiny 2mm x 2mm leadless Thin MLF package, 2% initial output accuracy which provides exceptional thermal characteristics. Tiny 8-pin 2mm x 2mm Thin MLF leadless package The MIC5350 is designed to be stable with small ceramic Excellent Load/Line transient response output capacitors thereby reducing required board space and component cost. The combination of extremely low- Fast start-up time: 30s drop-out voltage, low output noise and exceptional thermal Cap stable with 2.2F ceramic capacitors package characteristics makes it ideal for powering RF Thermal shutdown protection and noise-sensitive circuitry, cellular phone camera Low quiescent current: 130A with both outputs at modules, imaging sensors for digital still cameras, PDAs, maximum load MP3 players and WebCam applications. Current-limit protection The MIC5350 ULDO is available in fixed-output voltages in the tiny 8-pin 2mm x 2mm leadless Thin MLF package which occupies less than half the board area of a single Applications SOT23-6 package. Additional voltage options are available. For more information, contact Micrel marketing. Mobile phones Data sheets and support documentation can be found on PDAs Micrels web site at www.micrel.com. GPS receivers Portable electronics Portable media players Digital still and video cameras Typical Application RF Power Supply Circuit ULDO is a trademark of Micrel, Inc MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5350 Block Diagram June 2010 2 M9999-060410