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LTC3801

Linear Technology
Part Number LTC3801
Manufacturer Linear Technology
Description Micropower Constant Frequency Step-Down DC/DC Controllers
Published Jun 8, 2009
Detailed Description U U LTC3801/LTC3801B Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT FEATURES s High Efficiency: ...
Datasheet PDF File LTC3801 PDF File

LTC3801
LTC3801

Overview
U U LTC3801/LTC3801B Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT FEATURES s High Efficiency: Up to 94% s Very Low No-Load Quiescent Current: Only 16µA (LTC3801) s High Output Currents Easily Achieved s Internal Soft-Start s Wide VIN Range: 2.
4V to 9.
8V s Low Dropout: 100% Duty Cycle s Constant Frequency 550kHz Operation s Burst Mode® Operation for High Efficiency at Light Loads (LTC3801) s Burst Mode Operation Disabled for Lower Output Ripple at Light Loads (LTC3801B) s Output Voltage as Low as 0.
8V s ±1.
5% Voltage Reference Accuracy s Current Mode Operation for Excellent Line and Load Transient Response s Only 6µA Supply Current in Shutdown (LTC3801) s Low Profile (1mm) SOT-23 Package U APPLICATIO S s 1- or 2-Cell Li-Ion Battery-Powered Applications s Wireless Devices s Portable Computers s Distributed Power Systems DESCRIPTIO The LTC®3801/LTC3801B are constant frequency current mode step-down DC/DC controllers in a low profile (1mm max) 6-lead SOT-23 (Thin...


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