The 4690A-S02.5 from Modular Devices is a DC to DC Converter with Input Voltage 16 to 40 V, Output Voltage 1 2.4 to 2.6 V, Output Current 1 0.1 to 1 A, Output Power 2500 mW, Isolation Voltage 100 to 500 Vdc. Tags: Through Hole, Module. More details for 4690A-S02.5 can be seen below.