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UCC39002: Six phase solution for LM5119

Guru 19475 points
Part Number: UCC39002
Other Parts Discussed in Thread: LM5119, PMP10979,

PMP10979 is described  four phase LM5119 solution.

https://www.ti.com/tool/PMP10979

https://e2e.ti.com/blogs_/b/powerhouse/posts/power-tips-design-considerations-for-4-phase-1200w-synchronous-buck

I consider about LM5119 on six phase solution with load share controller.

Is these solution possible?

(Vin: 12V, Vout: 1.2V, Iout: 100A)

If available the reference design for six phase solution, please let me know.

If the other than LM5119 solution, it is OK, too. 

Best regards,

Satoshi

  • Hi Satoshi,

    it is not possible for UCC39002 used in six phase solution with LM5119.

    for load share controller UCC39002, it is not used for phase  interleaving, but just for load share.

    in UCC39002 application, each module need output current for load share control. 

    I look through the controller LM5119, and also do not find whether it can directly do six phase solution.

    since I do  not familiar with LM5119, and it belongs to other product line, I suppose other application engineer in that product line can help you.

    I suggest you create a new post with LM5119, to see whether six phase in this case works.