LTC3103 and LTC3104 operate at a fixed 1.2MHz switching frequency and utilize synchronous rectification to deliver efficiencies as high as 95%. For applications that demand low noise, both the LTC3103 and LTC3104 can operate in a “forced continuous mode” where the part will operate at the 1.2MHz switching frequency. The device can also be commanded to automatically transition from fixed frequency to Burst Mode operation to achieve high efficiency over an extremely wide range of load currents. Internal compensation, small-footprint DFN and MSOP packages and fixed 1.2MHz switching frequency enable the use of just a few tiny external components to offer very compact solution footprints. An accurate, programmable RUN comparator offers the user flexibility in programming at what input voltage the part will be enabled. Other features include Power Good, integrated soft-start, and over-temperature protection.