The 36E0312S-1WR2 from Ideal Power Ltd is a DC to DC Converter with Input Voltage 2.97 to 3.63 V, Output Voltage 1 12 V, Output Current 1 5 to 42 mA, Output Power 1000 mW, Output Voltage 2 -12 V. Tags: Through Hole, Buck-Boost. More details for 36E0312S-1WR2 can be seen below.