This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TSW1200上电后芯片很烫



  TSW1200评估板上电后,不久芯片就变烫,却能下载程序。检查发现其中的U15(TPS73225)严重烫手,测两端电压,输入6v,输出2.5v.与原理图中的一致,但是查数据手册,最大输入电压是5.5V。这是什么原因