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LM25141-Q1: 输出5V偶发不稳

Part Number: LM25141-Q1
Other Parts Discussed in Thread: LM25141

车载产品上使用了一级电源LM25141 ,输入12V,输出5V 。

测试输入12V多次上电下电过程中偶发5V输出上升到6V以上,导致损坏二级电源。请问怎么样不让输出上升到太高,调哪些参数?跟哪些参数有关。谢谢