ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,409, issued on Dec. 23, was assigned to Renesas Design (UK) Ltd. (Bourne End, Great Britain).

"Step down power converter with pre-dropout control" was invented by Mark Mercer (Phoenix) and John Kesterson (Central Point, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A step-down converter is presented. The step down converter includes a power stage having at least one phase, each phase comprising an inductor, a driver, and a clock source. The driver drives the power stage in a synchronous mode or in an asynchronous mode of operation with a minimum off time. When the output voltage approaches the input voltage of the converter, a duty cycle of th...