The MA01-12S05 from Total Power International is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 5 V, Output Current 1 4 to 200 mA, Output Power 1000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for MA01-12S05 can be seen below.