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48V to 1V converter recommendation

Other Parts Discussed in Thread: LMG5200, PMP4486, CSD16401Q5, CSD16325Q5, UCC2897A

Hi team,

I need a converter 48V to 1V and the max load current is 20A. It is used for supplying the CPU. The converter can be an isolated one or non-isolated one. Could you please recommend some devices? Many thanks.

Best regards

Chen Jiao

  • Hello Chen,
    There are a few ways to approach this.

    Take a look at these TI Designs.
    The first is digital based control, the second is an analog approach.
    The PMP4486 is a GaN-based reference design solution for telecom and computing applications. The GaN module LMG5200 enables a high efficiency single stage conversion with an input range from 36 to 60V down to 29V, 12V and 1.0V. This design shows the benefits of a GaN based design with high integration and low switching losses. A low cost ER18 planar PCB transformer is embedded on the board. The design was achieved in a compact form factor (56mmX86mmX16mm).
    This reference design generates a 1.2V/25A output from a standard 48V telecom input. The UCC2897A controls an active clamp forward converter power stage. The low gate thresholds of the CSD16401Q5 and CSD16325Q5 allow these devices to be used as self-driven synchronous rectifiers for a highly efficient design. This design also includes enable, remote sense, and output overvoltage features.

    If you have questions about these designs please let me know.
  • Hello ,
    Were any of these designs helpful?
    Is there any way I can assist further?
  • Hi Ed Walkder,

    The designs are helpful, many thanks for your efforts.

    Best Regards
    Chen Jiao