TracoPower TMR 2 Series 2W DC-DC Converters – TracoPower TMR 0521, These regulated 2W DC-DC converters from the TracoPower TMR 2 series are supplied in a miniature SIL casing and have a wide 2:1 input range. They are suitable for a wide range of applications in communication, control units and industrial equipment. TracoPower TMR 0521 2W DC-DC Converter 4.5 – 9V DC In ±5V DC ±200mA Out