Charge pump circuit and phase-locked loop circuit

Abstract

According to one embodiment, a charge pump circuit includes: a current source; a first current mirror including an input terminal connected to the current source; a second current mirror including an input terminal connected to an output terminal of the first current mirror; a third current mirror including an input terminal connected to a first output terminal of the second current mirror; a first switch including a first end connected to a second output terminal of the second current mirror via a first node, and including a second end; and an output terminal connected to an output terminal of the third current mirror and the second end of the first switch via a second node.

Dependencies are inferred from the claim text.