The 51028XXX Series from Frontgrade Technologies is a DC to DC Converter with Input Voltage 21 to 38 V, Output Voltage 1 0.8 to 12 V, Output Current 1 0 to 62 A, Output Power 0 to 50 W, Operating Temperature -55 to 125 Degree C. Tags: Surface Mount. More details for 51028XXX Series can be seen below.