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
- Patent Title: Low dropout regulator with an amplifier stage, current mirror, and auxiliary current source and related method
- Patent Title (中): 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
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Application No.: US14080238Application Date: 2013-11-14
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Publication No.: US09323259B2Publication Date: 2016-04-26
- Inventor: Chung-Cheng Chou , Po-Hao Lee
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Slater & Matsil, L.L.P.
- Main IPC: G05F1/46
- IPC: G05F1/46 ; G05F1/575 ; H02M1/12 ; H02M3/338

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.
Public/Granted literature
- US20150130427A1 Low Dropout Regulator and Related Method Public/Granted day:2015-05-14
Information query
IPC分类: