CHARGE PUMP CIRCUIT

摘要

A charge pump circuit includes a first potential input terminal for receiving a first potential; a second potential input terminal for receiving a second potential; a pump cell group formed of a plurality of pump cells and connected in series between the first potential input terminal and the second potential input terminal; and a negative voltage boosting capacitor connected to a first connection node between the first potential input terminal and a forefront stage pump cell of the pump cell group. Each of the pump cells is configured to increase a boosted voltage using a transistor operating in synchronization with a clock signal input through a capacitor.

主权项

1. A charge pump circuit, comprising:
a first potential input terminal for receiving a first potential; a second potential input terminal for receiving a second potential; a pump cell group connected in series between the first potential input terminal and the second potential input terminal, said pump cell including a first pump cell and a second pump cell, said first pump cell being connected at a forefront stage of the pump cell group; and a negative voltage boosting capacitor connected to a first connection node between the first potential input terminal and the first pump cell, wherein each of said first pump cell and said second pump cell includes a first transistor and a second transistor operating according to a first clock signal and a second clock signal.