A Capacitor-Less LDO With High-Frequency PSR Suitable for a Wide Range of On-Chip Capacitive Loads.

This paper presents an on-chip, low drop-out (LDO) voltage regulator with improved power-supply rejection (PSR) able to drive large capacitive loads. The LDO compensation is achieved via a custom, wide bandwidth capacitance multiplier (c-multiplier) that emulates a nanofarad-range capacitance at the LDO output node. The LDO frequency response resembles that of externally compensated LDOs, leading ...