Low drop-out voltage regulator with high-performance linear and load regulation
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United States of America Patent
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Nov 3, 2009
Grant Date -
Jan 8, 2009
app pub date -
Mar 4, 2008
filing date -
Jul 3, 2007
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Abstract
A low drop-out voltage regulator with high-performance linear and load regulation, comprising: a reference voltage circuit, capable of providing a reference voltage; a differential amplifier; a power device, capable of driving a load resistor; a feedback circuit, disposed between the differential amplifier and the power device so that the differential amplifier outputs a correction voltage after the reference voltage and a feedback voltage across the feedback circuit; and a voltage buffer for frequency compensation, disposed between the differential amplifier and the power device, the voltage buffer comprising a complementary type buffer.
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