Voltage regulator with adaptive frequency compensa

专利名称：Voltage regulator with adaptive frequency

compensation

发明人：Kiyoshi Kase,May Len申请号：US101811申请日：20040715

公开号：US20060012356A1公开日：20060119

专利附图：

摘要：A voltage regulator includes a first and second amplifier stage, an output stage,and a variable zero circuit. The first amplifier stage is coupled to receive a referencevoltage and introduces a first pole of the voltage regulator. The second amplifier stage is

coupled to the first amplifier stage and introduces a second pole of the voltageregulator. The output stage is coupled to the second amplifier stage, has an outputdriver, and is coupled to provide an output voltage based on the reference voltage. Thevariable zero circuit is coupled to the first amplifier stage, the second amplifier stage, andthe output stage. The variable zero circuit provides a zero to compensate for at least oneof the first pole or the second pole of the voltage regulator based on a gate to sourcevoltage of the output driver and a drain to source voltage of the output driver.

申请人：Kiyoshi Kase,May Len

地址：Austin TX US,Cedar Park TX US

国籍：US,US

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