The R1SX-3.305-R from Recom Power is a DC to DC Converter with Input Voltage 3.3 V, Output Voltage 1 5 V, Output Current 1 200 mA, Output Power 1000 mW, Operating Temperature -40 to 100 Degree C. Tags: Surface Mount, Boost/Step Up. More details for R1SX-3.305-R can be seen below.