Linear Dropout Regulator based power distribution design under worst loading

Amirali R. Shayan,Xiang Hu,Chung-Kuan Cheng,Wenjian Yu,Christopher Pan

ASIC（2011）

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摘要

This paper introduces a methodology to design and to optimize power distribution with on-die Linear Dropout Regulators (LDO). An analytical formula for worst voltage drop is derived that takes into account LDO-PDN system poles and zeros. LDO power and decoupling capacitor optimization flow is proposed to meet the system voltage noise requirements.

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关键词

integrated circuit design,integrated circuit noise,power supply circuits,voltage regulators,decoupling capacitor optimization flow,on-die linear dropout regulator,power distribution design,power flow,voltage noise requirement,worst loading

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