一种采用45纳米CMOS SOI的可调副本的高带宽电源抑制的小面积稳压器

2008 IEEE Asian Solid-State Circuits Conference Pub Date : 2008-12-12 DOI:10.1109/ASSCC.2008.4708752

T. Toifl, C. Menolfi, P. Buchmann, M. Kossel, T. Morf, M. Schmatz

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引用次数: 6

摘要

我们提出了一种低差电压调节器，它在环路中使用一个可调节的副本，以实现小面积、宽频率范围内优异的电源抑制和高环路稳定性。调节副本提供精确匹配的gm/gds比在电流源晶体管的副本和负载路径。在1.0 V电源的0.8 V电压下，在1ghz范围内测量到>22 dB的电源抑制。

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A small-area voltage regulator with high-bandwidth supply-rejection using a regulated replica in 45nm CMOS SOI

We present a low dropout voltage regulator which uses a regulated replica in the loop in order to achieve small area, excellent power supply rejection over a wide frequency range, and high loop stability. The regulated replica provides accurate matching of the gm/gds ratio in the current source transistors for the replica and the load path. Power supply rejection of >22 dB was measured up to 1 GHz for a circuit operating at 0.8 V from a 1.0 V supply.

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2008 IEEE Asian Solid-State Circuits Conference

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