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LM5140-Q1: LM5140 design problem

Part Number: LM5140-Q1

Hi Support Team,

Regarding LM5140, I would like to know the following questions:

My customer uses LM5140 to design products,

It is found that at 12V output, after the load is connected, the MOS tube is hot seriously and the inductance screams.

Can you help my customer check this problem?

Thanks so much.

Best regards,
Yuki