TDN DC/DC Converters TRACO Power 1W/3W/5W TDN DC/DC Converters offer high power density, an ultra-small footprint, and a wide 4:1 voltage range. All of the TDN series products feature fully regulated outputs and remote on/off. These high-performance converters are available in an ultra-compact DIP or SMD package. TRACO Power TDN DC/DC Converters are designed for a wide range of applications where space is limited.