发明授权
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
- 专利标题: Compensation network for error amplifier of a low dropout regulator
- 专利标题(中): 低压差稳压器误差放大器的补偿网络
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申请号: US12072259申请日: 2008-02-25
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公开(公告)号: US07956589B1公开(公告)日: 2011-06-07
- 发明人: Jun Fan
- 申请人: Jun Fan
- 申请人地址: US CA San Jose
- 专利权人: Fairchild Semiconductor Corporation
- 当前专利权人: Fairchild Semiconductor Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Okamoto & Benedicto LLP
- 主分类号: G05F1/40
- IPC分类号: G05F1/40
摘要:
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.
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