Using MP2908A making a 50v to 24v buck module

Applications
1

Hi there, i want to using MP2908A to creat a 50V to 24V application, and i noticed that it has maximum duty cycle at 99.5%.
Accroding to the datasheet`s output voltage formula to calulated the FB resistor R10 should be 348kohm.

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But using the simulation model to set 50VIN @ 24VOUT that FB resistors can not be verified correctly.

So I would like to check this with the FAE.
Thank you guys.

2

Hello,
Welcome to the forum.

May I know which simulation model are you referring to?

According to me, the FB resistor (R10 and R11) should be correct for 50V to 24V step down.

Regards,

Yash Shah