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  • TI Thinks Resolved

TPS65130: Vneg max current

Intellectual 2685 points

Replies: 4

Views: 59

Part Number: TPS65130

Hi Team

Would you advise my customer's question of Vneg max current at

Vin = 3.15V, Vout = - 6.7V?

Because max current  is difficult to estimate from the below graph in datasheet.

Thanks

Best regards,

Shidara

  • Hi,

    I have notified our expert regarding this topic. Please expect a response by 4/23/20.

    Thanks,

    Aaron

  • Hello Shidara-san,

    Maximum load current is dependent on input voltage, output voltage, load current and converter efficiency. Basically, in the case of TPS65130/131 it is limited by internal switch current limit. Theoretical max current at Vin=3.15V, Vout=-6.7V should be  ~160mA for TPS65130. If customer is concerned about max current margin, I would suggest to use TPS65131 instead of TPS65130 because it has a much higher internal switch current limit and hence can support much higher load current.

    Kind Regards,

    Liaqat

  • In reply to Liaqat Khan:

    Hi Liaqat-san

    Thank you so much for your advice.

    If I choose TPS65131, Theoretical max current will be 399mA, right?

    Any advice should be highly appreciated.

    Thanks

    Best regards,

    Shidara

  • In reply to K.Shidara:

    Hi Shidara-san,

    For TPS65131, theoretical maximum current with conditions provided will be approx. 450mA.

    Kind Regards,

    Liaqat

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