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Power solution request

Downey Kim
Expert 2675 points

Other Parts Discussed in Thread: LM51561

Hi TI experts,

Is there a solution that can be designed with the specifications below?

Input : 3.5~8V

Ouput : 30V / 2A & 50V / 1A

I couldn't find a possible solution due to the low input voltage.

Please check it.

Thanks,

Downey Kim.

  • 0
    TI__Guru* 80045 points

    Hi Downey,

    Thank you for reaching out. This is a high step up ratio conversion, and it may be easier to use a topology with transformer which can avoid taking excessive duty cycle.  You may consider the LM51561 in a non-isolated flyback topology.  Flyback is suitable for up to 75W power.

    Thanks,

    Youhao Xi, Applications Engineering