The PH50A280-12 from TDK Corporation is a DC to DC Converter with Input Voltage 9.6 to 13.2 V, Output Voltage 1 12 V, Output Current 1 4200 mA, Output Power 50400 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck-Boost. More details for PH50A280-12 can be seen below.