Integrated circuit with internal and external voltage regulators
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United States of America Patent
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Apr 26, 2016
Grant Date -
Dec 31, 2015
app pub date -
Jun 30, 2014
filing date -
Jun 30, 2014
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Abstract
An integrated circuit that supports both internal and external voltage regulators as well as various modes, such as a low power mode or a test mode, includes voltage regulator selection circuitry and power control circuitry. The regulator selection circuitry selects one of internal and external regulators based on two pin conditions. The power control circuitry controls ON/OFF status of the regulators corresponding to a power mode, including power-on reset, entering a low power mode, and wake-up from a low power mode.
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