The LTC3636 and LTC3636-1 are high efficiency, 20V, dual 6A synchronous buck converters that can be configured for a single 12A output. The devices operate from an input voltage range of 3.1V to 20V and provide an adjustable output voltage range from 0.6V to 5V for the LTC3636 and 1.8V to 12V for the LTC3636-1, while delivering up to 6A of continuous output current. The broad input and output voltage ranges make them ideal for a wide range of DDR memory, dual-cell Li-Ion powered systems, fixed 5V and 12V intermediate buses and industrial applications. They were developed as higher current versions of the popular LTC3633A family, having twice the power density in the same footprint.