The TMV 2-1503SHI from Traco Power is a DC to DC Converter with Input Voltage 13.5 to 16.5 V, Output Voltage 1 3.3 V, Output Current 1 0.5 A, Output Power 2 W, Isolation Voltage 5.2 kV. Tags: Through Hole, Buck/Step down. More details for TMV 2-1503SHI can be seen below.