Demonstration circuit 686, featuring the LTC3780, is a high efficiency step-up/down DC/DC converter that can regulate its output from input voltages both above and below the output. This board delivers 12V at 5 Amps from an input range of 5V to 32V. The LTC3780 is a high performance buck-boost switching regulator controller designed to regulate outputs using input voltages above, below or equal to the output voltage. The constant frequency current mode architecture allows phase-lockable frequency of up to 400kHz. A wide input and output range with continuous transfer function through all operation modes, makes the product ideal for automotive, telecom and battery systems.