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Reg:LM5121

PRAJEESH K Nair
Prodigy 250 points
Other Parts Discussed in Thread: LM5121, UCC28220, TPS40090

Hello sir,

I am in need of a Boost Converter as per the specification mentioned below.

      Vin   -      5V

      Vout  -     15V

       Iout  -     10A

Please confirm whether I can go for LM5121, or Suggest me some other options.

Waiting for your valuable reply at the earliest.


Regards,

Prajeesh

  • 0
    TI__Guru 58761 points

    Hi

    It is possible, but I do not recommend unless you are a power expert. 

    Since you have to select the sense resistor whose value is about 2 mOhm, it will be noise sensitive circuit. 

    Since your input voltage is only 5V, you have to select your MOSFET carefully. 

    Since your power rating is 150W, loss will be about 15W assuming 90% efficiency. You need a strong heat sinking. 

    Regards,

  • 0 in reply to EricLee
    TI__Guru**** 191445 points

    You may also want to consider UCC28220,UCC2808A or TPS40090.  These are all probably advanced designs also.