Enhancing the Bandwidth of Low-Dropout Regulators Using Power Transmission Lines for High-Speed I/Os

David C. Zhang; Madhavan Swaminathan; Arijit Raychowdhury; David Keezer

doi:10.1109/TCPMT.2017.2655002

Enhancing the Bandwidth of Low-Dropout Regulators Using Power Transmission Lines for High-Speed I/Os

David C. Zhang, Madhavan Swaminathan, Arijit Raychowdhury, David Keezer

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Power supply rejection peaking in low-dropout (LDO) voltage regulators can lead to reduced bandwidth and efficiency. This paper presents a new design method by combining power transmission lines (PTLs) with LDOs for enhancing its bandwidth and efficiency. This approach is applicable for LDOs regulating high-speed I/O drivers. The PTL combined with decoupling capacitors on the package or board is used to mitigate the power supply noise (PSN). This methodology is demonstrated using printed circuit board test vehicles with off-the-shelf components. Compared to conventional approaches, the PTL solution showed an 80% lower PSN.

Original language	English (US)
Article number	7850995
Pages (from-to)	533-543
Number of pages	11
Journal	IEEE Transactions on Components, Packaging and Manufacturing Technology
Volume	7
Issue number	4
DOIs	https://doi.org/10.1109/TCPMT.2017.2655002
State	Published - Apr 2017

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1109/TCPMT.2017.2655002

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title = "Enhancing the Bandwidth of Low-Dropout Regulators Using Power Transmission Lines for High-Speed I/Os",

abstract = "Power supply rejection peaking in low-dropout (LDO) voltage regulators can lead to reduced bandwidth and efficiency. This paper presents a new design method by combining power transmission lines (PTLs) with LDOs for enhancing its bandwidth and efficiency. This approach is applicable for LDOs regulating high-speed I/O drivers. The PTL combined with decoupling capacitors on the package or board is used to mitigate the power supply noise (PSN). This methodology is demonstrated using printed circuit board test vehicles with off-the-shelf components. Compared to conventional approaches, the PTL solution showed an 80% lower PSN.",

author = "Zhang, {David C.} and Madhavan Swaminathan and Arijit Raychowdhury and David Keezer",

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AU - Swaminathan, Madhavan

AU - Raychowdhury, Arijit

AU - Keezer, David

PY - 2017/4

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N2 - Power supply rejection peaking in low-dropout (LDO) voltage regulators can lead to reduced bandwidth and efficiency. This paper presents a new design method by combining power transmission lines (PTLs) with LDOs for enhancing its bandwidth and efficiency. This approach is applicable for LDOs regulating high-speed I/O drivers. The PTL combined with decoupling capacitors on the package or board is used to mitigate the power supply noise (PSN). This methodology is demonstrated using printed circuit board test vehicles with off-the-shelf components. Compared to conventional approaches, the PTL solution showed an 80% lower PSN.

AB - Power supply rejection peaking in low-dropout (LDO) voltage regulators can lead to reduced bandwidth and efficiency. This paper presents a new design method by combining power transmission lines (PTLs) with LDOs for enhancing its bandwidth and efficiency. This approach is applicable for LDOs regulating high-speed I/O drivers. The PTL combined with decoupling capacitors on the package or board is used to mitigate the power supply noise (PSN). This methodology is demonstrated using printed circuit board test vehicles with off-the-shelf components. Compared to conventional approaches, the PTL solution showed an 80% lower PSN.

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Enhancing the Bandwidth of Low-Dropout Regulators Using Power Transmission Lines for High-Speed I/Os

Abstract

All Science Journal Classification (ASJC) codes

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