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LOW POWER LOW-DROPOUT LINEAR VOLTAGE REGULATOR
LOW POWER LOW-DROPOUT LINEAR VOLTAGE REGULATOR
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机译:低功耗低压降线性稳压器
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摘要
An integrated circuit, including: a low dropout regulator configured to output regulated power to a device that can be in standard mode drawing power from the regulator or in idle mode during which it substantially does not draw power from the regulator; a capacitor in parallel to the regulator's output configured to be charged when the regulator is enabled and to provide power instead of the regulator when the regulator is disabled; a control configured to disable and enable the regulator; wherein the control is configured to disable the regulator when the device is in idle mode and enable the regulator when the device is in standard mode; and wherein during idle mode the control enables the regulator at various times to prevent the charge of the capacitor from decreasing more than a pre-selected amount.
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