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A switching regulator circuit that is capable of operation at supply voltages down to 1.0 V and consumes less than 100 mu A with no load, making it attractive in battery operated systems where long battery life is important, is discussed. The circuit can deliver 5 V at 50 mA with a 1.5-V input. Unlike previous low-voltage circuits, which are limited in output power, this circuit incorporates micropower...
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