The SSR01-05S2P5 from Ideal Power Ltd is a DC to DC Converter with Input Voltage 3 to 5.5 V, Output Voltage 1 1.2 to 3.63 V, Output Current 1 1000 mA, Operating Temperature -40 to 105 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Surface Mount, PCB Mount, Buck-Boost. More details for SSR01-05S2P5 can be seen below.