The LT3580 is a 2A, 42V integrated switch DC/DC converter that can be used in multiple topologies such as boost, SEPIC, flyback, and Cuk. It can use a single resistor to set either positive or negative output, making it easy for designers to use a single component list. The LT3580 also has soft-start, adjustable frequency, synchronization, and a wide input range, all in a small package.