CME 0.75W Single-Output DC/DC Converters Murata CME 0.75W Single-Output DC/DC Converters are isolated 0.75W DC/DC Converters that offer a cost-effective lower power alternative to a 1W DC/DC converter. The CME converters feature galvanic isolation and an operating temperature range from -40°C to +85°C with full 0.75W output. This allows the devices to be configured to provide an isolated negative rail in systems where only positive rails exist.