The PDM1-S15-S9-S from CUI is a DC to DC Converter with Input Voltage 13.5 to 16.5 V, Output Voltage 1 9 V, Output Current 1 11 to 111 mA, Output Power 1000 mW, Isolation Voltage 1500 V. Tags: SIP, Buck/Step down. More details for PDM1-S15-S9-S can be seen below.