The PH100A280-24 from TDK Corporation is a DC to DC Converter with Input Voltage 19.2 to 26.4 V, Output Voltage 1 24 V, Output Current 1 4200 mA, Output Power 100800 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck-Boost. More details for PH100A280-24 can be seen below.