The SUS1R50505 from Cosel is a DC to DC Converter with Input Voltage 4.5 to 9 V, Output Voltage 1 5 V, Output Current 1 0.3 A, Output Power 1500 mW, Isolation Voltage 500 Vdc. Tags: Through Hole, Surface Mount, Buck-Boost. More details for SUS1R50505 can be seen below.