Demonstration circuit 870A-B is a high efficiency, 2.25MHz buck converter, incorporating the LTC3410B monolithic synchronous regulator (with Burst Mode disabled). The DC870 has an input voltage range of 2.25V to 5.5V, and is capable of delivering up to 300mA of output current. The LTC3410B has an output voltage range from 0.8V to 5V, but the demo board is configured for a 1.8V output.