The 36IB1209LD-1W from Ideal Power Ltd is a DC to DC Converter with Input Voltage 11.4 to 12.6 V, Output Voltage 1 9 V, Output Current 1 12 to 111 mA, Output Power 1000 mW, Isolation Voltage 1000 V. Tags: Through Hole, Buck/Step down. More details for 36IB1209LD-1W can be seen below.