A 95.3% Peak Efficiency, 135nA Quiescent Current Buck-Boost DC-DC Converter with Current-Slope-Based Mode Control

被引：0
|
作者：
Lu, Danzhu [1 ]
Liu, Peng [1 ]
Yao, Suyi [1 ]
Wang, Langyuan [1 ]
He, Jie [1 ]
机构：
[1] Analog Devices Inc, Shanghai, Peoples R China
来源：
2018 IEEE SYMPOSIUM ON VLSI CIRCUITS | 2018年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A current-slope-based mode control method is proposed for a buck-boost DC-DC converter to realize automatic mode switching between buck and boost in one switching period without additional quiescent current (IQ). Implemented in 0.18 mu m CMOS, the converter realizes 95.3% peak efficiency and above 90% over a load range from 15 mu A to 200mA. Accurate current slope measurement is achieved with initial sampling and 135nA total IQ is achieved with a zero-IQ pull-up structure in the input monitor.
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页码：223 / 224
页数：2
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