Typical Application for LTC3454 1A Synchronous Buck-Boost High Current LED Driver

Typical Application for the LTC3454 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 mode depending on input voltage and LED forward voltage. PLED/PIN efficiency greater than 90% can be achieved over the entire usable range of a Li-Ion battery (2.7V to 4.2V)