IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543

This article has now been updated. Please use the final version.

A radiation-hardened Buck converter
Pengbo YangPing LuoBo LiHaoyang XiaoRongxun LinXiao ZhouShaowei Zhen
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JOURNAL FREE ACCESS Advance online publication

Article ID: 16.20190244

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Abstract

Buck converter is widely used in the aerospace field. However, radiation in the aerospace environment will result in degradation or failure of devices and circuits. This paper presents a radiation-hard Buck, which is an adaptive on-time Buck. A radiation-hard adaptive on-time generator is proposed by utilizing of leakage current compensation. The proposed radiation-hard adaptive on-time generator is composed of an adaptive on-time timing block and a charging current generator. Finally, the proposed Buck is fabricated in a standard 0.18μm BCD process. And the radiation tests show that the Buck still maintains stability after total ionizing dose irradiation at a total dose of 350Krad (Si).

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© 2019 by The Institute of Electronics, Information and Communication Engineers
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