The MCW03-05S033 from Total Power International is a DC to DC Converter with Input Voltage 4.5 to 9 V, Output Voltage 1 3.3 V, Output Current 1 175 to 700 mA, Output Power 3000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for MCW03-05S033 can be seen below.