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TPS568230: Inquiry on usage efficiency

JH Shin
Guru 10530 points
Part Number: TPS568230

Hello,

My customer has requested accurate efficiency information for the usage conditions below.

Please provide usage efficiency values.

Device Input Voltage Input Current Output Voltage Output Current Efficiency (%) Dissipated Power
(V) (A) (V) (A) 25 ℃ 80 ℃ (W)
TPS568230 12 0.69 3.3 2.4 　 　 0.42

Thank you.

JH

  • 0
    TI__Expert 5480 points

    Hi JH

    For an estimate of the efficiency at a specific operating point, I would recommend using WeBench and matching the design components selection, then using it's efficiency estimator. This is important since efficiency is affected by external component selection, such as input and output capacitors, and more heavily by the selected switching frequency.


    Since your above data provides an Input Voltage and Current along with an output voltage and current, I calculate that efficiency at 95.65%

    For measured efficiency data, the TPS568230EVM can be configured for above operating condition (instructions in the EVM User's Guide) .

    https://www.ti.com/tool/TPS568230EVM

    Thank you

    Savith