The TBA 1-0519HI from Traco Power is a DC to DC Converter with Input Voltage 4.5 to 5.5 V, Output Voltage 1 9 V, Output Current 1 0.111 A, Output Power 1 W, Isolation Voltage 2.121 kV. Tags: Through Hole, Boost/Step Up. More details for TBA 1-0519HI can be seen below.