The SDM30-12S3 from Mean Well is a DC to DC Converter with Input Voltage 9.2 to 18 V, Output Voltage 1 3.3 V, Output Current 1 5000 mA, Output Power 16500 mW, Operating Temperature -25 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for SDM30-12S3 can be seen below.