A fully-integrated switched capacitor voltage regulator for near-threshold applications

This paper proposes a novel control technique for Switched Capacitor Voltage Regulators (SCVRs) that reduces voltage ripple through capacitance reconfiguration. The proposed approach supports wide load range at high efficiency and high power densities, enabling a new class of operation in near-threshold applications. An SCVR design is implemented in 45 nm CMOS SOI process to demonstrate the proposed technique at different load conditions. Simulation results show the design achieving high efficiency (74-80%) across 5-125 mA load range with a high current density of 1.25 A/mm2.