The LFD28S from Pico Electronics is a DC to DC Converter with Input Voltage 200 to 380 V, Output Voltage 1 28 V, Output Current 1 0.27 to 2.68 A, Output Power 75000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for LFD28S can be seen below.