ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,659, issued on April 29, was assigned to AMS-OSRAM AG (Premstatten, Austria).

"Low-dropout regulator for low voltage applications" was invented by Cheng Zhang (Graz, Austria) and Emir Serdarevic (Feldkirchen, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A low-dropout regulator for low voltage applications includes a buffer circuit being arranged between an output terminal of an error amplifier and a control node of a pass device. The buffer circuit includes a driver having a first transistor being embodied as an NMOS transistor. The output terminal of the error amplifier is coupled to the control node of the first transistor. The control no...