The DQS1-3-S5-S from CUI is a DC to DC Converter with Input Voltage 2.97 to 3.63 V, Output Voltage 1 5 V, Output Current 1 200 mA, Output Power 1 W, Isolation Voltage 1 kV. Tags: Through Hole, Boost/Step Up. More details for DQS1-3-S5-S can be seen below.