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TPS62810-Q1: Current sharing by TPS62810-Q1

takahiko yokota
Mastermind 7135 points
Part Number: TPS62810-Q1
Other Parts Discussed in Thread: TPS54620, TPS57114-Q1

Hi

I think I use TPS62810-Q1×2pcs by current sharing.
Can I use this device use by current sharing?
May I consult the following link?

TPS54620 Parallel Operation

Best regards,
Yokota

TPS54620 Parallel Operation
  • 0
    TI__Expert 3135 points

    Hi takahiko yokota，

    We don't recommend you parallel two TPS62810-Q1, the performance will be worse and we also can't guarantee it can work stable for a long live time. For TPS54620, its compensation net is external, so we can connect it together to keep the Vcomp is same, but for TPS62810-Q1; the compensation net is internal, we can't keep the Vcomp is same for two device. So we don't recommend you parallel the TPS62810-Q1.

    Best Regards,

    Kevin

    If this answers your question, Please click "This resolved my issue" button.
    ____________________________________________
    TPS62810-Q1 – New Automotive 6Vin, 2.25MHz buck family with 1% accuracy and SYNC-pin. 1-2-3-4A options.
    Smallest 2x3QFN package with wettable-flanks for optical PCB inspection.

  • 0 in reply to Kevin-Cheng
    Mastermind 7135 points

    Hi Kevin-san

    Thank you for the information.
    I search for the device to meet the following condition.
    Are there appropriate device?

     Vin : 5V
     Vout : 0.9V
     Iout : 8A
     Fsw : under 500kHz or over 2MHz
     Application:Automotive

    Best regards,
    Yokota
  • 0 in reply to takahiko yokota
    Mastermind 7135 points

    Hi Kevin-san

    Can I use TPS57114-Q1 by current sharing?

    Best regards,
    Yokota
  • 0 in reply to takahiko yokota
    TI__Expert 3135 points

    Hi Yokota-san,

    TPS57114-Q1 has the external compensation net like TPS54620, so paralleling TPS57114-Q1  is better than TPS62810-Q1, but I can't guarantee its performance can meet your requirement, because we have not evaluated this design. 

    Best Regards,

    Kevin

    If this answers your question, Please click "This resolved my issue" button.
    ____________________________________________
    TPS62810-Q1 – New Automotive 6Vin, 2.25MHz buck family with 1% accuracy and SYNC-pin. 1-2-3-4A options.
    Smallest 2x3QFN package with wettable-flanks for optical PCB inspection.