原先采用的ST的VN340S,因为没有电流检测功能,客户想用Ti的TPS1H100-Q1;但是在测试过程中Vout和GND连续短路;出现出火花现象;

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Hi
先断开负载,拆除稳压管之类的干扰,确认芯片是否损坏?
另外请问你芯片哪里买的?