A low-noise low-dropout regulator using a 28-nm technology

L Wang, M Fassbender, M Scholl… - 2020 27th IEEE …, 2020 - ieeexplore.ieee.org
L Wang, M Fassbender, M Scholl, J Meier, R Wunderlich, S Heinen
2020 27th IEEE International Conference on Electronics, Circuits …, 2020ieeexplore.ieee.org
This paper presents a low-dropout regulator (LDO) with the capability to provide a stable 0.9
V supply voltage for fluctuation-sensitive circuits such as the voltage-controller oscillator in a
frequency synthesizer. The LDO uses a low noise architecture that separates two feed-back
loops with a low-pass filter with a extremely low 3-dB frequency of 8.15 Hz. The circuit is
designed in a 28-nm technology, operating with a 1.8 V external voltage and able to supply
maximum current of 25 mA. Analysis and implementation for optimizing power supply …
This paper presents a low-dropout regulator (LDO) with the capability to provide a stable 0.9 V supply voltage for fluctuation-sensitive circuits such as the voltage-controller oscillator in a frequency synthesizer. The LDO uses a low noise architecture that separates two feed-back loops with a low-pass filter with a extremely low 3-dB frequency of 8.15 Hz. The circuit is designed in a 28-nm technology, operating with a 1.8 V external voltage and able to supply maximum current of 25 mA. Analysis and implementation for optimizing power supply rejection ratio (PSRR) of the circuit are also addressed in this paper.
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