The PAF500F Series from TDK Corporation is a DC to DC Converter with Input Voltage 18 to 76 V, Output Voltage 1 3.3 to 28 V, Output Current 1 18000 to 80000 mA, Output Power 264000 to 504000 mW, Output Voltage 2 2 to 30.8 V. Tags: Surface Mount, Buck/Step down. More details for PAF500F Series can be seen below.