Invention Grant
US09323259B2 Low dropout regulator with an amplifier stage, current mirror, and auxiliary current source and related method 有权
具有放大器级,电流镜和辅助电流源的低压差稳压器及相关方法

Low dropout regulator with an amplifier stage, current mirror, and auxiliary current source and related method
Abstract:
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.
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