Patent ID: 8072257

Claim:
A charge pump-type booster circuit, comprising a boost circuit including: first and second transistors connected in series between a first voltage and a second voltage; a first capacitor including one end connected to a connection node between the first transistor and the second transistor; a first drive circuit that boosts a voltage at an other end of the first capacitor; a second capacitor connected between the second voltage and a reference voltage; a first controller that controls a conductivity of the first transistor; and a second controller that receives the first and second voltages, and supplies one of the first voltage and the second voltage to the second transistor, to control a conductivity of the second transistor, wherein the boost circuit is supplied with the reference voltage, a supply voltage, and a boost clock signal, and generates the second voltage by boosting the supply voltage, wherein the boost clock signal includes a first clock signal supplied to the first drive circuit and the second controller, and a second clock signal supplied to the first controller, and wherein a falling timing of the first clock signal is delayed by a predetermined time from a rising timing of the second clock signal, and a falling timing of the second clock signal is delayed by the predetermined time from a rising timing of the first clock signal.