| BUCK型双输出同步控制器LM5642的原理与应用 |
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| 引用本文： | 冀勇,唐湘成,吴尽昭,刘怡.BUCK型双输出同步控制器LM5642的原理与应用[J].国外电子元器件,2009(9). |
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| 作者姓名： | 冀勇 唐湘成 吴尽昭 刘怡 |
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| 作者单位： | 电子科技大学;西南技术物理研究所; |
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| 摘 要： | 详细介绍LM5642器件的工作原理和组成。该器件属于电源控制器中的电压控制型,采用PWM技术调节输出电压。介绍基于LM5642的双路输出大电流应用,描述设计中相关元器件选择以及PCB板制作过程中需考虑的相关问题,最后以该器件为核心通过DC/DC变换设计多路输出不同值的电压和电流作为系统电源。
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| 关 键 词： | LM5642 电源 DC/DC PWM |
Principle and application of BUCK-type dual-output synchronous controller LM5642 |
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| JI Yong,TANG Xiang-cheng,WU Jin-zhao,LIU Yi.Principle and application of BUCK-type dual-output synchronous controller LM5642[J].International Electronic Elements,2009(9). |
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| Authors: | JI Yong TANG Xiang-cheng WU Jin-zhao LIU Yi |
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| Affiliation: | JI Yong1,TANG Xiang-cheng2,WU Jin-zhao1,LIU Yi2(1.University of Electronic Science and Technology of China,Chengdu 610054,China,2.Southwest Institute of Technical Physics,Chengdu 610041,China) |
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| Abstract: | This paper describes the working principle and composition of the voltage control chip LM5642 which belongs to power control chip,PWM technique is used to realize output voltage regulation.Dual-output high-current applications based on the LM5642 are introduced,the selection of the power-related components and the related issues considered during the PCB board production process is described.Finally,this design takes the LM5642 as the core,through DC/DC transformation,designs a system which uses multi-outpu... |
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| Keywords: | LM5642 power supply DC/DC PWM |
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