Slater & Matsil, L.L.P.
Low dropout regulator with an amplifier stage, current mirror, and auxiliary current source and related method
A device is configured to provide low dropout regulation. An amplifier stage includes a first transistor electrically connected to an output of the device, and a second transistor. A current mirror includes a third transistor electrically connected to the second transistor, and a fourth transistor electrically connected to the third transistor. The auxiliary current source has a control terminal electrically connected to a gate electrode of the fourth transistor. The pull down stage includes a fifth transistor having a gate electrode electrically connected to a drain electrode of the first transistor, and a sixth transistor having a gate electrode electrically connected to the gate electrode of the fourth transistor. The pull up transistor has a gate electrode electrically connected to a drain electrode of the fifth transistor. The first capacitor has a first terminal electrically connected to the gate electrode of the first transistor.
Taiwan Semiconductor Manufacturing Company, Ltd.
G G G H H
G05F G05F G05F H02M H02M
inventional inventional inventional additional additional
Chung-Cheng Po-Hao
Chou Lee