LTC3454 driver equivalent, 1a synchronous buck-boost high current led driver.
n High Efficiency: >90% Typical in Torch Mode, >80% in Flash Mode
n Wide VIN Range: 2.7V to 5.5V n Up to 1A Continuous Output Current n 3.5% LED Current Programming Accura.
n Cell Phone Camera Flash n Cell Phone Torch Lighting n Digital Cameras n PDAs n Misc Li-Ion LED Drivers
DESCRIPTION
Th.
The LTC®3454 is a synchronous buck-boost DC/DC converter optimized for driving a single high power LED at currents up to 1A from a single cell Li-Ion battery input. The regulator operates in either synchronous buck, synchronous boost, or buck-boost m.
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