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LMR50410-Q1: 出现电压跌落现象

Part Number: LMR50410-Q1

您好!

使用LMR50410-Q1芯片,负载电流一般在0.52A左右,使用2个小时左右,出现电压跌落的现象,除了过流会出现这样的跌落,还有其他哪些原因会导致这个跌落的现象?

原理图如下:

示波器测量如下:(黄色为电源输出,绿色为电源输入)