The 0RP4-80E1A0 from Bel Fuse is a DC to DC Converter with Input Voltage 5 to 13.8 V, Output Voltage 1 0.8375 to 5 V, Output Current 1 80000 mA, Output Power 400000 mW, Operating Temperature 0 to 70 Degree C. Tags: Surface Mount, Buck/Step down. More details for 0RP4-80E1A0 can be seen below.