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求助LMZ31710调试问题,无法获得正确的输出电压。

Other Parts Discussed in Thread: LMZ31710

使用LMZ31710实现16V-5V/10A的输出。原理图如下。上电调试的时候发现空载情况下输出5V正常,但是加了负载之后(3A左右的负载),电压就降到了3.3V。是不是设计有什么问题,请教问题原因及调试的步骤,谢谢。