The TBA 2-1221 from Traco Power is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 5 V, Output Current 1 0.2 A, Output Power 2 W, Output Voltage 2 -5 V. Tags: Through Hole, Buck/Step down. More details for TBA 2-1221 can be seen below.