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TPS5431 电容选择的问题咨询

Other Parts Discussed in Thread: TPS54331

 

这个图片是我在看TPS54331的spec中的一个截图,是在选择DCDC的输出电容上的,其中有两个名词没有看懂。

一个是desired closed-loop crossover frequency

一个是LC corner frequency of the output filter

这两个频率都是什么意思呢,他们的主要作用是什么,谢谢!