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Tool/software:
Hello,
I am trying to make the 3rd design in the datasheet with LM5148, but when I start drawing current, I hear noise from LM5148 and I cannot get close to the output power given in the datasheet. When I want to draw 5A current, the mosfets reach 102 degrees and above.
It was drawing current and heating up at the inductor value specified in the datasheet, now a 10uH inductor is installed and there is no problem when it is idle.
However, the noise in LM5148 is repeated when drawing current and it heats up a lot.
Hello Talha,
Please complete the quickstart calculator for this design so that we can review stability and power losses. What is the inductor part number and is it rated for the required current?
Regards,
Tim