| 摘要 |
A voltage regulator circuit includes an output stage circuit which operates either in a normal operation state in which a regulator output voltage stabilized in accordance with an input control voltage is supplied from a regulator output terminal to an external load circuit or in an overcurrent protection state in which a regulator output current supplied from the regulator output terminal to the external load circuit is limited up to a predetermined level. The voltage regulator circuit further includes a first control circuit which generates the control voltage in accordance with the regulator output voltage and outputs the control voltage to the output stage circuit, and a second control circuit which monitors a state of the output stage circuit and switches the output stage circuit between the normal operation state and the overcurrent protection state in accordance with the monitored state of the output stage circuit.
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