Charge pump circuit.

摘要

A charge pump circuit (1) including a number of pull-up stages (2) connected in parallel with one another between a reference potential line (3) and an output line (4). Each stage (2) includes a capacitor (5) having a first terminal connected to a charging and discharging node (7), and a second terminal connected to a pull-up node (6) for switching between a first charging operating phase and a second charge transferring operating phase. The charging and discharging node (7) is connected to the supply line (3) via a charging transistor (9) having a control terminal connected to a high-voltage bias node (11) formed by the adjacent stage in the opposite operating phase, for charging the capacitor (5) substantially up to the supply voltage. <IMAGE>