Request the review of 2 x LTC7821 LTspice design


My customer are designing to use 2 LTC7821 with 48V input and 12V 40A output.

And for this, they make a simulation model like below file which is same configuration (except Temp pin) as application circuit in the 36 page in LTC7821 datasheet.

But the simulation result isn't good.

They say that PGOOD is dropped under 7V and then simulation isn't operated any more.

Would your check their  ASC file and let me know your opinions?

LTC7821(48V to 12V, x2 40A).asc



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