Embodiments provide, among other things, a circuit including a frequency generator and a charge pump. In embodiments, the frequency generator may be configured to provide the charge pump with a clock signal at a first frequency for a predefined period of time. Thereafter, the frequency generator may provide the charge pump with a clock signal at one or more other frequencies. In embodiments, the first frequency may enable the charge pump to settle in a reduced period of time when compared with the one or more other frequencies.