EC1TAN 1W DC-DC Converters Cincon EC1TAN Series 1W DC-DC Converters are available in a SIP-4 package featuring input voltages of 5V, 12V, and 24V. Output is available with 5V, 12V, or 15V. The Cincon EC1TAN Series 1W DC-DC Converter operates from -40 to +85C with no derating. Isolation is 1KV and efficiency is up to 82%.