Low voltage dropout circuit with compensating capacitance circuitry
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United States of America Patent
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-
Oct 8, 1996
Issued Date -
N/A
app pub date -
Jun 2, 1995
filing date -
Jan 20, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved low voltage dropout regulation circuit is provided. The internal compensating capacitance coupled to the regulated output port is coupled to a virtual ground and the virtual ground is current buffered for coupling to the control electrode of the path element. For additional frequency compensation, particularly when the path element has a large capacitance, an additional internal compensating capacitance is coupled between the input of the dropout circuit and an output of a transconductance amplifier, which is responsive to the voltage at the regulated output port.
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