Review, Survey, and Benchmark of Recent Digital LDO Voltage Regulators
Zhaoqing Wang, Sung Justin Kim, Keith Bowman, Mingoo Seok
Abstract
This paper presents a review of the recent digital low-dropout voltage regulators (DLDOs). We have reviewed them in five aspects: control laws, triggering methods, power-FET circuit design, digital-analog hybridization, and single vs. distributed architectures. We then have surveyed and benchmarked more than 50 DLDOs published in the last decade. In addition, we have offered a new figure-of-merit (FoM) to address the shortcomings of the previously proposed FoMs. The benchmark provides insights on which techniques contribute to better dynamic load regulation performance. The survey and benchmark results are uploaded to a public repository.
Topics & Concepts
Benchmark (surveying)Dropout (neural networks)Computer scienceUploadFigure of meritVoltage regulatorLow-dropout regulatorElectronic engineeringVoltageDropout voltageEngineeringElectrical engineeringMachine learningGeographyGeodesyComputer visionOperating systemAnalog and Mixed-Signal Circuit DesignAdvancements in Semiconductor Devices and Circuit DesignLow-power high-performance VLSI design