Patent ID: 8981837
Filing Date: 2015-03-17
Classification: H02M

Abstract:
1. A system for providing a load current at a specific output voltage to a circuit block of an integrated circuit (IC), comprising: a supply node at a supply voltage; a charge pump, comprising: a cross-coupling circuit to: wherein, for each capacitor, the top plate node comprises a gate of a MOS device, the bottom plate node comprises a source and a drain of the MOS device, the ground node comprises a P-substrate of the MOS device, and the intermediate node comprises an isolating N-well of the MOS device and wherein the cross-coupling circuit comprises: a first switch controlled by an isolating N-well voltage of the second capacitor that couples the isolating N-well of the first capacitor to the supply node; and a second switch controlled by an isolating N-well voltage of the first capacitor that couples the isolating N-well of the second capacitor to the supply node.