Tracopower tmr 3 series 3w dc dc converters tracopower tmr 3 0523 the tracopower tmr 3 series offers insulated regulated 3w dc dc converters with a wide 21 input range supplied in an ultra compact sil 8 housing these converters are suitable for a number of applications in telecommunications industrial and communication systems where space is a critical factor tracopower tmr 3 0523 3w dc dc converter 45 9v dc in 15v dc 100ma out