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UCC27533: Bypass capacitor value

Toshihiro Watanabe
Genius 10235 points
Part Number: UCC27533

Hello,

We would like to know the recommended bypass capacitor value. Is it 0.1uF ceramic capacitor enough for this?

Approximately in how far the bypass capacitor is ok for "as close as possible"? Better than close 2 or 3mm from VCC or GND pin? other side should be connected power plane as short as it can by via I think though.

Best regards,

Toshihiro Watanabe

  • 0
    TI__Genius 13445 points
    Hi Toshihiro-san,

    Thanks for reaching out to the High Power Drivers team, my name is Mamadou Diallo, I am the AE supporting this device.

    Please use 2 low ESR, ceramic surface mount capacitors DIRECTLY across VDD and GND: a 0.1uF ceramic surface-mount capacitor for high frequency filtering AND another surface-mount capacitor, >1uF for IC bias requirements.
    VDD is pin 1 and GND is pin 2 so therefore place the caps directly across those two pins.

    Please let us know if you further questions or press the button if this addressed your inquiry.

    Thanks.

    Regards,

    -Mamadou