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DS80PCI402: DC/DC converter output can connect DS80PCI402 diretly?

Toshihiro Watanabe
Genius 10235 points
Part Number: DS80PCI402

Hi,

In 2.5V-mode, is it ok to connect dcdc converter output directly to VDD pins? Or using LDO or 3.3V-mode is recommended?

Best regards,

Toshihiro Watanabe

  • 0
    TI__Mastermind 43795 points

    Hi,

    Either method can work quite well.  The current demand of the DS80PCI402 is quite stable - there is no dynamic current component.  This makes any external DC/DC conversion easy to implement. 

    For single or double device implementations most applications rely on the internal regulator to establish the 2.5V supply.  When larger groups of DS80PCI402 devices are used a switching supply offers enhanced efficiency.

    Regards,

    Lee