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LM5164: LM5164

liangshi he
Part Number: LM5164

I use LM5164 to design, input 48V, output 12V, I design according to the official DEMO board, when I use the electronic load meter and DC stabilized source to debug, the waveform of the sw pin is normal, when I connect to the motherboard, it The SW pin waveform appears abnormal, similar to DCM mode, and then the inductor is whistling. How to solve this problem?