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关于LM5576的电源纹波问题

Other Parts Discussed in Thread: LM5576

各位大神好,我用TI的电源设计工具用LM5576做了一款5V的电源模块,原理图参考的是datasheet中的,

但是测试发现,电源的纹波非常严重,不知道是哪里出了问题,请教各位!

波形如下: