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TPS61088不升压,SW没有波形

Other Parts Discussed in Thread: TPS61088

您好!

我们按照Webench上的设计,修改了几个电阻和电容的阻值,但是发现TPS61088不升压,反而降压了。

输入是3.6v,输出3.4v了。

以下是我们的原理图,PCB板也是完全按照手机上画的。

Ccomp = 1nF+1.5nF

Css = 10nF

Rfbt = 360K

Rfbb = 39K

这是小的修改,其他的都一模一样。