The periodic connection/disconnection of large capacitive loads in the global-shutter mode of complementary metal-oxide semiconductor(CMOS)image sensors can induce output-voltage undershoots，long settling times，and excessive ripples in the driver supply. This study presents a capacitorless regulated charge-pump driver that achieves rapid transient response with low ripple. The proposed three-stage power-delivery network sequentially employs a main-supply precharge， rapid charge-pump compensation， and precise linear-regulator correction， thereby enabling rapid voltage ramp-up for large capacitive loads and a stable， low-ripple output. Implemented in a 180-nm CMOS process and validated via process-corner simulations，the driver achieves an undershoot below 265 mV and a 99% settling time of less than 48. 9 ns under the periodic switching of a 3. 5 nF load capacitor while maintaining a steady-state ripple below 0. 837 mVpp. The 99% settling time for a 0 V to 3. 8 V transition at the load node is less than 77. 04 ns. The driving capability—defined as the ratio of the driver’s output capacitance to the load capacitance—is improved by ~29× compared with that of prior capacitorless designs while preserving low-ripple regulation.