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TPS65266: Pls. kindly help to check the schematic.

Lian Wu
Genius 5250 points
Part Number: TPS65266

Dears:

Could you kindly help to check the below schematic.

5.pdf

Btw, can we directly use the reference from webench?

  • 0
    TI__Mastermind 19080 points
    Hi Lian,

    1. PGood need to be pull up by 100kOhm, which the schematic didn't show the connection.
    2. You may place a small capacitor on each of COMP pin, in parallel with the existing RC. You don't need to install this cap when assembling the board. It can help to optimize the compensation design in case of any instability issue.

    Other things looks good.

    Regards,
    Sam
  • 0
    TI__Mastermind 19080 points
    Hi,

    Another thing is, the SS1/2/3 are tied together with 0.01uF to GND.
    Please note that there will be 3 times amount of current flowing onto the Css , which means soft start time will be 1/3.

    Regards,
    Sam