The MA03-12S15 from Total Power International is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 15 V, Output Current 1 3 to 200 mA, Output Power 3000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Boost/Step Up. More details for MA03-12S15 can be seen below.