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先去掉TPS63001,只给MCP73831供电,输入电压从0V开始慢慢起调,看MCP73831启动瞬间,最大的冲击电流是多少。然后再想解决办法。
VCC_3P3后面连接的负载是什么?另外,断开D2是否依然烧毁?