Demonstration circuit DC1336 is a dual output regulator consisting of two constant-frequency step-down converters, based on the LTC3417A-2 monolithic dual synchronous buck regulator. The DC1336 has an input voltage range of 2.25V to 5.5V, with one regulator capable of delivering up to 1.5A of output current and the other regulator capable of delivering up to 1A of output current. The DC1336 can operate in either Burst Mode® or Pulse-Skipping operation. In shutdown, the DC1336 can run off of less than 1 uA total. The DC1336 is a very efficient circuit: up to 94% for either circuit.