Regulator and high voltage generator
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United States of America Patent
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May 3, 2011
Grant Date -
Feb 12, 2009
app pub date -
Dec 28, 2007
filing date -
Aug 8, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A regulator included in a high voltage generator for supplying a high voltage to a semiconductor memory device is disclosed. The regulator includes a voltage dividing circuit configured to divide an output voltage of a charge pump, a comparing circuit configured to compare a reference voltage with a divided voltage by the voltage dividing circuit, a regulator driving circuit configured to couple selectively the voltage dividing circuit to a ground, and a high voltage discharging circuit configured to discharge the divided voltage applied to the comparing circuit when supply of a power supply voltage is stopped.
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