A charge pump circuit may include a charge pump unit suitable for performing a charge pump operation until an output voltage reaches a target voltage; and a multi-stage charge sharing unit comprising first to Nth capacitors coupled in parallel between the charge pump unit and a load circuit, the multi-stage charge sharing unit being suitable for sequentially performing first to Nth charge sharing operations between the first to Nth capacitors, respectively, and the load circuit after the charge sharing operation, wherein the first to Nth charge sharing operations are mutually and exclusively performed, and N is a natural number equal to or greater than 2.
