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LM5158: Webech Error

Kento Sato
Intellectual 890 points
Part Number: LM5158
Other Parts Discussed in Thread: LM5157

Hi Team, 

My customer uses webench for LM5158. Then he puts more than 1A in Iout, design can't be created though 0~3A should be OK.

Could you let me know why and how we can solve?

Best regards,

Kento

  • +1
    TI__Genius 11215 points

    Hello Kento, 

    Thanks for reaching out. The LM5158 has a peak current of 3.75 A (typ), therefore in boost topology it cannot support a load current of 2 A at 56 V with a minimum Vin of 24 V. For such specs please use the LM5157. Let us know if further support is needed. 

    Kind regards,

    EM