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TPS65051-Q1: TPS65051-Q1 / Dropout voltage vs output current

S.Satoshi
Guru 21675 points
Part Number: TPS65051-Q1

Hi,

The customer consider to use TPS65051-Q1 and now they would like to know the characteristic of dropout voltage vs output current because there is only maximum value in electrical characteristics. Please share any data if you have. It will be OK if you have such data for other similar devices.

Best Regards,

Satoshi / Japan Disty

  • 0
    TI__Genius 16410 points
    Hello Satoshi-san,

    I couldn't find this data available, so I looped in the responsible apps engineer to help.
    I did find this E2E post, which has some dropout information.
    e2e.ti.com/.../2265312

    Regards,
    Karl
  • 0 in reply to Karl Wallinger
    Guru 21675 points
    Hi Karl,

    Thank you for your support. Please let me know when you have feedback from application engineer team.

    Best Regards,
    Satoshi
  • 0 in reply to S.Satoshi
    TI__Genius 9655 points

    Satoshi-san,

    Did you take a look at the thread that Karl had referred to (e2e.ti.com/.../2265312)? It does show bench-data for lower load conditions.

    I would have taken the same approach, but this would be redundant...

    As Gordon had pointed out, we assure datasheet performance. The drop out is only specified at maximum load.

    Even though the bench-data (found in the referenced thread) shows a significantly lower drop (~60mV @ 100mA), this may vary significantly over temperature.

    Consequently, such data needs to be tested in the customer environment under his worst-case & corner condition, leaving sufficient margin and remains at customers risk.

    For a conservative design (and high load currents), we suggest to allow for the specified drop-out of 400mV resp. 280mV.

    Best regards,

    Frank