This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS563203: SW 脚输出振荡

Part Number: TPS563203

客户使用TPS563203 做8.4V输入,4.2V/3A 输出功能,发现SW 脚输出有振荡(详见附件波形图),后面加了RC 吸收电路,有一些改善,但上升和下降沿中间慧又一个回滞的毛刺(详见附件波形图有红圈的那张)。原理图见附件。我有建议客户加大输出电容,把两个10uF 并联电容改为22uF,cp39 改为18pf,客户都试过,没有改善。

另外提供了PCB文件,请帮忙review 下客户的原理图和PCB 图。谢谢!

    N2-MB-V1-1-5.pcb