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LM27313的SW引脚对地击穿的问题



最近正在用这个IC,锂电池供电升压到5V左右,但是刚开始在实验板上没有问题,集成到系统板后即使输出悬空只要上电就会有300MA以上的电流,然后SW引脚对地击穿。