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This paper presents a 0.65-V flipped voltage follower (FVF)-based regulator with an embedded sub-1-V voltage reference. A low-pass filter is employed in the current coupling path to reduce the bias noise and improve the power supply rejection (PSR) at a low-frequency band (<kHz). The chip is fabricated in a 0.18-μm CMOS process and occupies an active area of 0.076 mm2. The proposed FVF regulator...