US Patent 9515548 Charge pump systems and methods

Charge pump systems and methods for the operation thereof can be configured for delivering charge to a primary circuit node. A sequential charging pattern of at least a subset of a series-connected plurality of charge-pump stages connected between a supply voltage node and the primary circuit node can be selectively initiated. For example, the sequential charging pattern can be initiated one time for every N cycles of a given clock signal, wherein N is a selectively adjustable integer value greater than or equal to 1.