As a way to mitigate the limitation of the inductor-based and switched-capacitor based converter, we explore the resonant switched capacitor (ResSC) topology as a hybrid approach. The ResSC topology can utilize the favorable on-die capacitor for tight integration while leveraging a small inductor to eliminate the intrinsic charge sharing. This enables higher power density without efficiency compromise along with lossless regulation. The introduced inductance is much less than that needed in the common buck/boost converter. In order to facilitate the design and control of a ResSC converter, the harmonic-balance method is adopted for developing its large signal and small signal models. A current-phase based compensation scheme based on the small signal model is developed to enable a fast transient response. The effectiveness of topology concept, modeling and control are verified by the switched-based simulation in a design example for on-chip power delivery.