The MIW1031 from Total Power International is a DC to DC Converter with Input Voltage 18 to 36 V, Output Voltage 1 3.3 V, Output Current 1 60 to 600 mA, Output Power 3000 mW, Operating Temperature -25 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for MIW1031 can be seen below.