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LTC3531/ LTC3531-3.3/LTC3531-3
200mA Buck-Boost Synchronous DC/DC
Converters
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FEATURES
■ Regulated Output with Input Above, Below or Equal to the Output
■ Single Inductor ■ Up to 90% Efficiency ■ VIN Range: 1.8V to 5.5V ■ 200mA at 3.3VOUT from 3.6V Input ■ 125mA at 3VOUT from 2.5V Input ■ Fixed VOUT Versions (TSOT, DFN): 3.3V, 3V ■ Adjustable VOUT Version (DFN): 2V to 5V ■ Burst Mode® Operation, No External Compensation ■ Ultra Low Quiescent Current: 16μA, Shutdown
Current <1μA ■ Only 3 External Components Required
(Fixed Voltage Versions) ■ Short-Circuit Protection ■ Output Disconnect in Shutdown ■ Available in 6-Pin ThinSOT and 3mm × 3mm DFN
Packages
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■ Handheld Instruments ■ MP3 Players ■ Handheld computers ■ PDA/GPS
DESCRIPTIO
The LTC®3531/LTC3531-3.