The P78E03-1000 from CUI is a DC to DC Converter with Input Voltage 6 to 36 V, Output Voltage 1 3.3 V, Output Current 1 1000 mA, Output Power 3300 mW, Isolation Voltage 0 VDC. Tags: Surface Mount, Buck/Step down. More details for P78E03-1000 can be seen below.