Linear Technology Corp. has introduced the LT3724, a single-chip, -40 ºC to 125 ºC-rated dc/dc controller for use in step-down, step-up, inverting or SEPIC circuits with up to 100 W of output power.
A substantial percentage of regulator requirements involve stepping down the primary voltage. Although linear regulators can do this, they cannot achieve the efficiency of switching based approaches1.