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    Electromagnetic interference issues of PCB

    Hey,guys!Today I find an annoying phenomenent of my PCB borad. A Chip,LT8316, and some components on the front of the PCB borad.A LED on the back.And chip controls the On-off of a NMOS to control the power supplied to LED.When I tested the borad alone,the LED almost brighted perfectly.But when I...
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    LT8316 non-isolated LTSpice Error

    I'm copying “Ultra-Wide Input Range Non-Isolated 12V Buck Converter” from LT8316 datasheet into LTspice. But the results seems to be very strange. The voltage on FB is even higher than Vin, which is way above the standard reference voltage(1.22V). I can't find any difference between the...