90% High Efficiency and 100-W/cm3 High Power Density Integrated DC-DC Converter for Cellular Phones
90% High Efficiency and 100-W/cm3 High Power Density Integrated DC-DC Converter for Cellular Phones
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DOI：
10.1109/tpel.2012.2197762
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发表时间：
2013-04-01
影响因子：
6.7
通讯作者：
Yamasawa, Kiyohito
中科院分区：
文献类型：
--
作者：
Sugahara, Satoshi;Yamada, Kouhei;Yamasawa, Kiyohito
本文介绍了一种用于手机的小型降压型DC-DC转换器。输出功率MOSFET和控制电路采用单片集成。新开发的脉冲频率调制控制集成电路安装在转换器封装内的平面电感上，具有低于10 μ A的低静态电流和0.35 μ m CMOS工艺中1.4 mm x 1.1 mm的小芯片尺寸。该转换器实现了90%的最大效率和100 W/cm以上的功率密度（3）。
This paper describes a small-size buck-type dc-dc converter for cellular phones. Output power MOSFETs and control circuitry are monolithically integrated. The newly developed pulse frequency modulation control integrated circuit, mounted on a planar inductor within the converter package, has a low quiescent current below 10 mu A and a small chip size of 1.4 mm x 1.1 mm in a 0.35-mu m CMOS process. The converter achieves a maximum efficiency of 90% and a power density above 100 W/cm(3).