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TPS55340 升压只能输出几十mA,有图

Other Parts Discussed in Thread: TPS55340

TPS55340 输入3.7V左右,输出24V,只能输出几十mA,如果再大就会把24V拉低,而且此时有将近2Vpp的纹波。请问这是什么原因呢。

下面是图纸,附件里有完整的工程文件。多谢!!

TPS55340升压.rar