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TPS61376: Can this boost device support 19Vin and 24V/3A output.

Gary Zeng
Intellectual 1195 points
Part Number: TPS61376

Tool/software:

Hi team, 

My customer wants to use TPS61376 for 19Vin and 24V/3A Vout.

I am failure to use Webench and Pspice simulation.

Could you please help check it this boost device can support 19Vin and 24V/3A output.

I see its Rja is 64.9°C/W. output power is 24V x 3A= 72W. Suppose 10% loss, P loss will be 72W x 10%= 7.2W Themal issue will be unacceptable.

Q1: Can it support 19Vin and 24V/3A output ayt the same time?

Q2: Do you have themal testing results?

  • 0
    TI__Expert 8865 points

    Hi Gary,

    24V x 3A= 72W means about 4A on the inductor average current limit. Maximin average current limit for TPS61376 is 3A so this will not be supported. Can you share reason why customer needs TPS61376? Does customer need true shutdown feature? True shutdown boost with 72W capability is very rare in the market . 

    Best Regards,

    Travis