发明名称 |
Internal step-down power supply circuit |
摘要 |
An internal step-down power supply circuit has an internal step-down power-supply output node, a driver, a divider circuit and a current mirror circuit. The internal node provides an internal step-down power supply potential. The driver adjusts an external power-supply potential and provides an adjusted external power-supply potential to the internal node. The divider circuit divides a voltage that appears on the internal node and provides a divided voltage. The current mirror circuit is connected to the divider circuit. The current mirror circuit compares the voltage provided by the divider circuit and a reference voltage. The current mirror circuit sets the conductance of a first transistor feeding a current in response to the reference voltage to n times of the conductance of a second transistor feeding a current in response to the voltage provided from the divider circuit, wherein n is greater than 1.
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申请公布号 |
US2004207461(A1) |
申请公布日期 |
2004.10.21 |
申请号 |
US20040845215 |
申请日期 |
2004.05.14 |
申请人 |
OTSUKA MASAYUKI;HARADA TERUHIRO |
发明人 |
OTSUKA MASAYUKI;HARADA TERUHIRO |
分类号 |
G11C11/413;G05F1/46;G05F1/56;G11C11/407;H01L21/822;H01L27/04;(IPC1-7):G05F1/10 |
主分类号 |
G11C11/413 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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