The P78A03-0500 from CUI is a DC to DC Converter with Input Voltage 6 to 28 V, Output Voltage 1 3.3 V, Output Current 1 500 mA, Output Power 1650 mW, Isolation Voltage 0 VDC. Tags: Surface Mount, Buck/Step down. More details for P78A03-0500 can be seen below.