LTC3441EDE Demo Board, 1MHz, 1A, Synchronous Buck-Boost Converter, 2.5 to 5.5Vin, 3.3Vout @ 1A

Demonstration Circuit DC625A is a constant-frequency synchronous Buck-Boost converter using the LTC3441. The input range is from 2.4V to 5.5V, making it ideal for single-cell lithium-ion or three-cell NiCd/NiMH battery applications