EC3A 3W DC-DC Converters Cincon EC3A 3W DC-DC Converters feature a 2:1 input range, 3W isolated output, and regulated outputs. Housed in a 24-pin DIP package, the series offers efficiency to 82% and continuous short-circuit protection. Cincon EC3A 3W DC-DC Converters have a Pi input filter and a UL60950-1 approval for the H/HM versions.