Patent ID: 6878981

Claim:
A charge pump stage comprising: a first n-channel transistor having a source coupled to an input terminal and a drain coupled to an output terminal; a second n-channel transistor having a source coupled to the input terminal, a drain coupled to a gate of the first n-channel transistor, and a gate coupled to the output terminal; a third n-channel transistor having a source coupled to the input terminal, a gate coupled to the output terminal, and a drain coupled to a p-well; a fourth n-channel transistor having a source coupled to the output terminal, a gate coupled to the input terminal, and a drain coupled to the p-well, wherein the first, second, third and fourth n channel transistors are fabricated in the p-well; a first capacitor coupled to the output terminal; and a second capacitor coupled to the gate of the first n-channel transistor.