Patent ID: 7683699

Claim:
A circuit comprising: a first half charge pump stage comprising: a first p-type device; a second p-type device having a gate connected to a source of the first p-type device defining a pump stage input node and having a drain connected to a drain of the first p-type device defining an intermediate node; and a first control gate capacitor having a first lead connected to the gate of the first p-type device and the source of the second p-type device; and a second half charge pump stage comprising: a third p-type device; a fourth p-type device having a gate connected to a source of the third p-type device, directly connected to the drain of the first p-type device and to the drain of the second p-type device, and the fourth p-type device having a drain connected to a drain of the third p-type device defining an output node; and a second control gate capacitor having a first lead connected to the gate of the third p-type device and the source of the fourth p-type device, and having a second lead connected to a second lead of the first control gate capacitor.