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research article

Power Aware Placement of On-Chip Voltage Regulators

Bairamkulov, Rassul  
•
Friedman, Eby G.
February 1, 2024
Ieee Transactions On Computer-Aided Design Of Integrated Circuits And Systems

In traditional power delivery networks, the on-chip supply voltage is provided by board-level converters. Due to the significant distance between the converter and the load, variations in the load current are not effectively managed, producing a significant voltage drop at the point-of-load. To mitigate this issue, modern high-performance systems utilize on-chip voltage regulators. Due to the close proximity to the load, these regulators can quickly respond to fluctuations in the input voltage or load current, providing superior power quality. Integrated voltage regulators however require significant area, limiting the number of on-chip regulators. An algorithm for distributing on-chip voltage regulators is presented in this article. The algorithm is accelerated using the acrlong IMT, enabling the analysis of arbitrarily sized power grids. The power quality is maximized with a limited number of regulators. Practical scenarios are supported, such as limited current capacity and restricted placement. Several orders of magnitude speedup in the placement process is demonstrated while achieving up to 88% reduction in the maximum voltage drop.

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Type
research article
DOI
10.1109/TCAD.2023.3319285
Web of Science ID

WOS:001166816300006

Author(s)
Bairamkulov, Rassul  
•
Friedman, Eby G.
Date Issued

2024-02-01

Publisher

Ieee-Inst Electrical Electronics Engineers Inc

Published in
Ieee Transactions On Computer-Aided Design Of Integrated Circuits And Systems
Volume

43

Issue

2

Start page

654

End page

666

Subjects

Technology

•

Circuit Optimization

•

Design Automation

•

Design Optimization

•

Design Tools

•

Gradient Methods

•

Power Distribution Networks

•

Power System Modeling

•

Power Quality

•

System-On-Chip

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSI1  
FunderGrant Number

National Science Foundation

Available on Infoscience
April 3, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/206807
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