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TLV627432: max output current

Will Wang47
Expert 6710 points
Part Number: TLV627432

Hi team,

Customer has one question about tlv627432. As in the datasheet show, VOUTnom + 0.7 >= 2.15V, max output current is 300mA; VOUTnom + 0.7 >= 3V, max output current is 400mA.

If Vin = 5V, Vout =1.8V or 1.2V, both max output curent would be 300mA. Does my understanding correct? Hope you could give some comments to this.

Thanks and best regards,

Will

  • 0
    TI__Prodigy 750 points

    Hi Will,

    Thanks for reaching out. 

    Since the Vin is 5V in both cases, the device should be able to support 400mA for a Vout of 1.8V and 1.2V

    I hope this answers your question. Feel free to get back if you need further help.

    Thanks,

    Zain Riaz

  • 0 in reply to Zain Riaz
    TI__Expert 6710 points

    Hi Zain,

    Thanks for your reply.

    Could I understand that if Vin>=2.15V, and Vin >= VOUTnom+0.7, output current max is 300mA;

    If Vin >= 3V, and Vin >= VOUTnom+0.7, output current max is 400mA;

    Does my understanding make sense?

    Thanks and best regards,

    Will

  • 0 in reply to Will Wang47
    TI__Prodigy 750 points

    Hi Will,

    Yes. That is exactly what the equation in datasheet means. The way I see it is as follows:

    • 400mA is only achievable if: 5.5V≥VIN≥3V, keeping in mind that the following condition always has to be fulfilled: VIN≥VOUTnom+0.7V
    • 300mA is only achievable if: 5.5V≥VIN≥2.15V, keeping in mind that the following condition always has to be fulfilled: VIN≥VOUTnom+0.7V

    I hope this clarifies the conditions. 

    Best Regards,
    Zain Riaz

  • 0 in reply to Zain Riaz
    TI__Expert 6710 points

    Hi Zain,

    Thanks for the detailed explanation, clear about this.

    Best Regards,

    Will