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TPS61046: Output voltage setting

Genius 4425 points

Replies: 3

Views: 100

Part Number: TPS61046

Hi
My customer has question.

Customer want to set aVout=28V.
However, the output voltage is only set to 24V.
In addition, I tried to set again 20V, 22V, 24V, 26V, 28V.
20V and 22V become the output voltage of each value normally.
But, 24V, 26V and 28V, all become 24V output.
Is there anything that could be attributed to it?

Best Regard

T Kishi

  • Hi T Kishi:
    May you share something detail? What's the value of the Vin and load?
    And it's better share me with the schematic. Thank you~

    Best Regards

    Minqiu

  • In reply to Minqiu Xie:

    Hi Minqiu

    Thank you for reply.

    The customer specifications are as follows.
    Vin=5V、Vout=28V、Iout=100mA、Inductance=10uH
    The customer specifications are as follows.
    I noticed one point, there is a possibility that over current protection is working.
    Is this understanding correct?

    Regard
    T Kishi
  • In reply to T Kishi:

    Hi T Kishi:
    You are right. It may reach the current limit.
    You could do a quick calculation to check it. Or Webench may help you. www.ti.com/.../webench-power-designer.html

    Best Regards

    Minqiu

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