Linear regulator with a common resistance

Abstract

A linear regulator is disclosed, comprising: a transistor having a control terminal, a first main terminal being a supply terminal connected to a supply input, and a second main terminal being an output terminal configured to provide a regulated output at an output connection; an error amplifier having a reference input, a feedback input and an output connected to the control terminal; a reference current source; a reference circuit configured to provide a reference voltage to the reference input from the reference current source; and a feedback circuit from the second main terminal through a feedback resistance (Rfb) and configured to provide a feedback voltage to the feedback input of the error amplifier; wherein the feedback circuit and the reference circuit include a common resistance (Rtail, Rd3), and at least one of the reference circuit and the reference circuit comprises a capacitive path (Cref) to a ground.

Dependencies are inferred from the claim text.