Demonstration circuit 828 is a step-down converter using the LTC3409 monolithic synchronous buck regulator. The DC828 has an input voltage range of 1.6V to 5.5V and is capable of delivering up to 600mA of output current at a minimum input voltage of 1.8V. The jumper-selectable output voltage can be set to 1.2V, 1.5V or 1.8V.