The SUS6053R3 from Cosel is a DC to DC Converter with Input Voltage 4.5 to 9 V, Output Voltage 1 3.3 V, Output Current 1 1.2 A, Output Power 3960 mW, Isolation Voltage 500 Vdc. Tags: Through Hole, Surface Mount, Buck/Step down. More details for SUS6053R3 can be seen below.