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A Transient-Enhanced Digital-LDO With Adaptive Clock-Edge Control | IEEE Conference Publication | IEEE Xplore

A Transient-Enhanced Digital-LDO With Adaptive Clock-Edge Control


Abstract:

This paper presents a transient-enhanced digital LDO with adaptive clock edge control. An under-strength detector and an adaptive clock edge multiplier are devised to ach...Show More

Abstract:

This paper presents a transient-enhanced digital LDO with adaptive clock edge control. An under-strength detector and an adaptive clock edge multiplier are devised to achieve adaptive tuning of the clock signal, which generates a double rising edge clock signal. This method can be combined with traditional digital feedforward techniques to significantly improve the transient response of the digital low-dropout regulator. The proposed DLDO is implemented using a 180nm CMOS process and achieves a maximum current efficiency of 98.8% and quiescent current of 9.8µA when operated at input and output voltages of 0.9V and 0.85V. The proposed method reduces the response time by 50%.
Date of Conference: 24-27 October 2023
Date Added to IEEE Xplore: 24 January 2024
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Conference Location: Nanjing, China

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