The MCWI02-12S033 from Total Power International is a DC to DC Converter with Input Voltage 4.5 to 18 V, Output Voltage 1 3.3 V, Output Current 1 500 mA, Output Power 2000 mW, Operating Temperature -40 to 90 Degree C. Tags: Through Hole, Buck/Step down. More details for MCWI02-12S033 can be seen below.