Two Wide Input Range Monolithic Switching Regulators Make it Easy to Fit Boost, Flyback, SEPIC and Inverting Topologies into Tight Spaces
The document describes the LT3957 and LT3958 as high-power monolithic switching regulators capable of generating positive or negative outputs from a wide range of input voltages. The LT3957 operates over an input range of 3V to 40V, while the LT3958 extends this to 80V for high-voltage telecommunications supplies.
The LT3957 operates over an input range of 3V to 40V.
The LT3958 extends the input voltage to 80V.
The LT3958 has an internally programmed current limit of 4A.