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LM5116实现24V转16V,在带载测试上10A左右,输出变为0V的问题

Other Parts Discussed in Thread: LM5116

用LM5116设计了一个24V转16V,最大12A的DCDC。在测试的时候,带载测试6〜7A持续输出没什么问题,当上10A左右,忽然输出电压变为0V,再之后空载测试也都是0V了。

换了几片芯片都是这样的问题。

Job1.PDF