A 93.5% Efficiency, 400-mA Current-Mode DC-DC Buck Converter with Watchdog Functions

被引：3
|
作者：
Ahn, Youngkook [1 ]
Nam, Hyunseok [1 ]
Roh, Jeongjin [1 ]
机构：
[1] Hanyang Univ, Dept Elect Engn, Ansan 426791, South Korea
来源：
2009 INTERNATIONAL SOC DESIGN CONFERENCE (ISOCC 2009) | 2009年
关键词：
D O I：
10.1109/SOCDC.2009.5423862
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A current-mode dc-dc buck converter was implemented in a standard 0.35- m 1-poly 6-metal 3.3-V CMOS technology. This paper proposes watchdog circuits in order to ensure the reliability and to improve the performance of dc-dc converters. The dc-dc converter systems can be protected from over-voltage, over-temperature, and over-current conditions. In addition to the protection from destructive conditions, a reverse-current protection circuit is implemented to improve efficiency under light-load conditions. The maximum efficiency of the fabricated converter was 93.5%. The chip area is only 1.02 mm(2).
引用
收藏
页码：428 / 431
页数：4
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