The PEM1-S5-D3-S from CUI is a DC to DC Converter with Input Voltage 4.5 to 5.5 V, Output Voltage 1 3 V, Output Current 1 152 mA, Output Power 1000 mW, Output Voltage 2 -3 V. Tags: Surface Mount, Buck-Boost. More details for PEM1-S5-D3-S can be seen below.