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关于LM5175在12V输出情况下,接近12V输入有啸叫声问题

Other Parts Discussed in Thread: LM5175

hi all;

  关于LM5175在12V输出情况下,调整输入电压在升压阶段准备到12V时电感有啸叫声,调整输入电压在降压阶段接近12V时也有同样现象,请问是什么问题引起如何解决,其他电压段正常。