Review of analog-assisted-digital and digital-assisted-analog low dropout regulators

M Huang, Y Lu, RP Martins - IEEE Transactions on Circuits and …, 2020 - ieeexplore.ieee.org
The low dropout regulator (LDO) is a key component in power management, providing an
accurate and stable output voltage against line/load variations and power supply ripple …

Power delivery for high-performance microprocessors—challenges, solutions, and future trends

K Radhakrishnan, M Swaminathan… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
The power delivery requirements for the early microprocessors were fairly rudimentary due
to the relatively low power levels. However, several decades of exponential scaling powered …

Design Trends and Perspectives of Digital Low Dropout Voltage Regulators for Low Voltage Mobile Applications: A Review

LF Lai, H Ramiah, YC Tan, NS Lai, CC Lim… - IEEE …, 2023 - ieeexplore.ieee.org
Low-dropout (LDO) voltage regulator has fascinated industry professionals and academia
for the past few decades, and this trend is expected to continue in the coming years. The …

An analog-assisted tri-loop digital low-dropout regulator

M Huang, Y Lu, U Seng-Pan… - IEEE Journal of Solid …, 2017 - ieeexplore.ieee.org
This paper presents an analog-assisted (AA) output-capacitor-free digital low-dropout (D-
LDO) regulator with tri-loop control. For responding to instant load transients, the proposed …

A transient-enhanced output-capacitorless LDO with fast local loop and overshoot detection

N Liu, D Chen - IEEE Transactions on Circuits and Systems I …, 2020 - ieeexplore.ieee.org
An output-capacitorless low-dropout regulator (OCL-LDO) with simple structure and fast
transient response is proposed for system-on-chip (SoC) applications. A super source …

A fully integrated digital LDO with built-in adaptive sampling and active voltage positioning using a beat-frequency quantizer

S Kundu, M Liu, SJ Wen, R Wong… - IEEE journal of solid …, 2018 - ieeexplore.ieee.org
This paper proposes a fully integrated digital low-dropout (DLDO) regulator using a beat-
frequency (BF) quantizer implemented in a 65-nm low power (LP) CMOS technology. A time …

A high efficiency and fast transient digital low-dropout regulator with the burst mode corresponding to the power-saving modes of DC–DC switching converters

JH Lin, SH Yang, B Muniandi, YS Ma… - … on Power Electronics, 2019 - ieeexplore.ieee.org
The proposed digital low-dropout regulator uses nonlinear switching control (NLSC)
technique to suppress voltage ripple to less than 6 mV when the switching noise voltage of a …

20.4 An output-capacitor-free analog-assisted digital low-dropout regulator with tri-loop control

M Huang, Y Lu, U Seng-Pan… - 2017 IEEE International …, 2017 - ieeexplore.ieee.org
Low-dropout regulators (LDOs) are widely distributed in SoC designs to supply individual
voltage domains, and a digital LDO (DLDO) is favorable for its low-voltage operation and …

A nanosecond-transient fine-grained digital LDO with multi-step switching scheme and asynchronous adaptive pipeline control

F Yang, PKT Mok - IEEE Journal of Solid-State Circuits, 2017 - ieeexplore.ieee.org
This paper introduces a multi-step switching scheme for a digital low dropout regulator
(DLDO) that emerges as a new way of achieving nanosecond-transient and fine-grained on …

Limit cycle oscillation reduction for digital low dropout regulators

M Huang, Y Lu, SW Sin, U Seng-Pan… - … on Circuits and …, 2016 - ieeexplore.ieee.org
The digital low dropout regulator (D-LDO) has drawn significant attention recently for its low-
voltage operation and process-scalability. However, the D-LDO inherently suffers from limit …