The VTX-224-051-1211 from Vigortronix is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 5 V, Output Current 1 20 to 200 mA, Output Power 500 mW, Isolation Voltage 1000 V. Tags: Surface Mount, Buck/Step down. More details for VTX-224-051-1211 can be seen below.