A 0-to- 10μF Off-Chip Output Capacitor-Scalable Boost Converter Achieving 96.68% Peak Efficiency

IF 2 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

IEEE Solid-State Circuits Letters Pub Date : 2025-08-01 DOI:10.1109/LSSC.2025.3594739

Hyeon-Ji Choi;Joo-Mi Cho;Hyo-Jin Park;Seok-Jun Lee;Sung-Wan Hong

引用次数: 0

Abstract

This letter presents an off-chip output capacitor (CO)-scalable (OCS) boost converter. The proposed OCS boost converter is possible to operate both with and without the off-chip CO. In addition, it operates in a whole conversion ratio (CR) range over 1 while maintaining a small current ripple of an inductor, resulting in a high efficiency with an inductor of which inductance is small, irrespective of the

$C_{O}$

capacitance. The converter was fabricated in 130-nm BCD process and shows a peak efficiency of 96.68% at

$V_{IN}{=}5.5$

$V_{O}{=}7$

V, and I

${_{\text {O}}} {=}200$

mA which has the CR of 1.27.

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一个0到- 10μF的片外输出电容可扩展升压变换器，实现96.68%的峰值效率

这封信提出了一个片外输出电容(CO)-可扩展（OCS）升压转换器。所提出的OCS升压变换器可以在有或没有片外CO的情况下工作。此外，它可以在超过1的整个转换比（CR）范围内工作，同时保持电感的小电流纹波，从而使电感小的电感具有高效率，而与C_{O}$电容无关。该转换器采用130 nm BCD工艺制备，在$V_{in}{=}5.5$ V、$V_{O}{=}7$ V和${_{\text {O}} {=}200$ mA时效率最高，CR为1.27。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Solid-State Circuits Letters Engineering-Electrical and Electronic Engineering

CiteScore

4.30

自引率

3.70%

发文量