The IB0503XT-W75R3-TR from MORNSUN is a DC to DC Converter with Input Voltage 4.75 to 5.25 V, Output Voltage 1 3.3 V, Output Current 1 20 to 200 mA, Output Power 750 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for IB0503XT-W75R3-TR can be seen below.