Power source generation circuit and integrated circuit

A power source generation circuit includes a regulator circuit which receives an external power source voltage VDDA from an external power source, and generates a predetermined internal power source voltage on a given terminal VDD; and a charging circuit which connects the external power source and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Sadayuki Eiichi, Yoshioka Kazuki
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A power source generation circuit includes a regulator circuit which receives an external power source voltage VDDA from an external power source, and generates a predetermined internal power source voltage on a given terminal VDD; and a charging circuit which connects the external power source and the given terminal when the external power source voltage VDDA supplied from the external power source is equal to or lower than a predetermined threshold voltage.