Switched capacitor (SC) converters with excellent voltage regulation, high conversion efficiency, and good suitability fora wide range of applications are provided. An SC converter can include at least two SC sub-circuits, and at least one of these SC sub-circuits can be of variable gain. One SC sub-circuit can convert the input voltage of the SC converter to an output voltage close to the desired output voltage value for the SC converter, and another SC sub-circuit having variable gain can convert the input voltage to an output voltage with a high resolution of small discrete voltage steps.