A 7-MHz integrated peak-current-mode buck regulator with a charge-recycling technique

Jung Woo Ha; Byung Ha Park; Jung Hoon Chun

doi:10.1109/TCSII.2016.2608833

A 7-MHz integrated peak-current-mode buck regulator with a charge-recycling technique

Jung Woo Ha, Byung Ha Park, Jung Hoon Chun

Department of Semiconductor Systems Engineering

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

7 Scopus citations

Abstract

A 7-MHz integrated peak-current-mode buck regulator with a charge-recycling technique and a fast response current-sensing circuit is proposed. The proposed chargerecycling technique contributes to the improvement of the light load efficiency by up to 1.7% for the proposed buck regulator. Moreover, the proposed buck regulator achieves a fast response time of less than 10 ns with a fast response current-sensing circuit. Applying the proposed charge-recycling technique and the current-sensing circuit, the peak-current-mode buck regulator for the mobile application is realized with an operating frequency of 7 MHz, an output voltage of 0.8 V, a maximum load current of 500 mA, and a peak efficiency of over 77%.

Original language	English
Pages (from-to)	797-801
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	64
Issue number	7
DOIs	https://doi.org/10.1109/TCSII.2016.2608833
State	Published - Jul 2017

Keywords

Charge-recycling technique
Current-mode buck regulator
Fast response current sensor
High frequency buck regulator

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10.1109/TCSII.2016.2608833

Cite this

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title = "A 7-MHz integrated peak-current-mode buck regulator with a charge-recycling technique",

abstract = "A 7-MHz integrated peak-current-mode buck regulator with a charge-recycling technique and a fast response current-sensing circuit is proposed. The proposed chargerecycling technique contributes to the improvement of the light load efficiency by up to 1.7\% for the proposed buck regulator. Moreover, the proposed buck regulator achieves a fast response time of less than 10 ns with a fast response current-sensing circuit. Applying the proposed charge-recycling technique and the current-sensing circuit, the peak-current-mode buck regulator for the mobile application is realized with an operating frequency of 7 MHz, an output voltage of 0.8 V, a maximum load current of 500 mA, and a peak efficiency of over 77\%.",

keywords = "Charge-recycling technique, Current-mode buck regulator, Fast response current sensor, High frequency buck regulator",

author = "Ha, \{Jung Woo\} and Park, \{Byung Ha\} and Chun, \{Jung Hoon\}",

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AB - A 7-MHz integrated peak-current-mode buck regulator with a charge-recycling technique and a fast response current-sensing circuit is proposed. The proposed chargerecycling technique contributes to the improvement of the light load efficiency by up to 1.7% for the proposed buck regulator. Moreover, the proposed buck regulator achieves a fast response time of less than 10 ns with a fast response current-sensing circuit. Applying the proposed charge-recycling technique and the current-sensing circuit, the peak-current-mode buck regulator for the mobile application is realized with an operating frequency of 7 MHz, an output voltage of 0.8 V, a maximum load current of 500 mA, and a peak efficiency of over 77%.

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A 7-MHz integrated peak-current-mode buck regulator with a charge-recycling technique

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Keywords

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