Invention Grant
US07956589B1 Compensation network for error amplifier of a low dropout regulator
有权
低压差稳压器误差放大器的补偿网络
- Patent Title: Compensation network for error amplifier of a low dropout regulator
- Patent Title (中): 低压差稳压器误差放大器的补偿网络
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Application No.: US12072259Application Date: 2008-02-25
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Publication No.: US07956589B1Publication Date: 2011-06-07
- Inventor: Jun Fan
- Applicant: Jun Fan
- Applicant Address: US CA San Jose
- Assignee: Fairchild Semiconductor Corporation
- Current Assignee: Fairchild Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Agency: Okamoto & Benedicto LLP
- Main IPC: G05F1/40
- IPC: G05F1/40

Abstract:
An error amplifier of a low dropout regulator includes a compensation network configured to adapt the error amplifier to varying load currents. The compensation network may be coupled to an amplifier stage of the error amplifier. For example, the compensation network may be coupled across an input and an output of the amplifier stage in a Miller connection. As another example, one end of compensation network may be coupled to an input of the amplifier stage with another end coupled to ground. The compensation network may have several resistors and capacitors that have corresponding parameter switches for switching the resistors and capacitors in and out of the compensation network to change a parameter of the compensation network based on load current.
Information query
IPC分类: