Multi-topology current-mode controller for 2.9V to 40V rails
The Analog Devices LT3757AIDD#PBF is a current-mode PWM controller that handles boost, flyback, and SEPIC topologies from a single 2.9V to 40V supply rail. It drives an external transistor (no synchronous rectifier) and delivers a single output configurable for positive or negative polarity. The 100kHz to 1MHz switching range lets you trade inductor size against efficiency, and the clock sync input keeps multiple rails phase-aligned on dense boards. Control features include enable, frequency control, and soft start.
Housed in a 10-WFDFN exposed pad package (3x3 mm, DFN-10), the LT3757AIDD#PBF is surface-mount and suited for compact power stages.
It is ROHS3 compliant.