Multi-topology PWM controller for flexible power conversion
It operates from a 4.5V to 42V supply rail, switching between 100kHz and 750kHz with clock sync support for noise-sensitive systems.
The 4.5V to 42V Vcc/Vdd range is the headline number for fit. It covers 12V and 24V industrial buses, automotive battery rails during cold-crank and load-dump transients, and battery-powered systems that sag below 5V. The 100% duty cycle capability lets the controller pass the input straight through in dropout, useful when the input dips close to the output target. No synchronous rectifier on-chip — you add external MOSFETs and catch diodes; the controller drives them with a PWM signal.
Marked as current/active in the lifecycle record. No last-time-buy notice on file, no NRND flag.
20-TSSOP-EP — thermal and layout notes
The PCB layout should stitch vias under the pad to the ground plane — without that, junction temperature climbs fast above 400mA continuous external load. The Tube delivery means parts arrive loose in a plastic tube; no tape-and-reel, so pick-and-place requires a tube feeder or manual handling.