Abstract
An output capacitor-less low-dropout (LDO) regulator based on flipped voltage follower (FVF) for system-on-chip (SoC) application is presented. With a common-gate amplifier and two-pole system, it evidently simplifies the architecture of the LDO regulator and achieves the stability more easily. Implemented in SMIC 55nm CMOS, the proposed LDO regulator only consumes 15 µA net current from 1.5V power supply, with a minimum dropout voltage of 200 mV. With 16pF total compensation capacitance, it can provide 0–30mA load current with a load capacitance range of 0–300pF.
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