The Texas Instruments UC3879N is a phase shift resonant controller designed for high-efficiency power conversion. It operates within a 9V to 20V supply range and supports switching frequencies up to 300kHz.
The Texas Instruments UCC3895N is a DC DC switching controller featuring a phase-shifted full-bridge topology. It operates with an input voltage range of 10V to 16.5V and a maximum frequency of 1MHz.