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TPS54620: Please help check if there is a problem with the circuit schematic of TPS54620, TPS54521, and TPS24701?

user5707026
Genius 3145 points
Part Number: TPS54620
Other Parts Discussed in Thread: TPS54521, TPS24701,

Please help check if there is a problem with the circuit schematic of TPS54620, TPS54521, and TPS24701?

Or Show us how to check the circuit schematic.

After the entire schematic design of the circuit is completed, it is necessary to detect those parameters and recommend which software to detect;

Thanks A lot.

  • 0 in reply to user5707026
    TI__Guru**** 191445 points

    Elsa,

    It is best if you make a separate post for each part number.  This forum is tracked by the reference part number, in this case TPS54620.  TPS54521 and TPS24701 are supported by other teams and they may not be aware of it.  Also, I did not see any TPS54521 schematics in your document.  I will get someone from our team to review TPS54620 or supply you with a checking tool.  What method did you use to derive the external component values?

  • 0 in reply to JohnTucker
    TI__Mastermind 35135 points

    Hi Elsa,

    I have a couple comments on the TPS54620 schematic. I suggest increasing C6398 to 15 nF and decreasing C2802 to 220 pF. This puts the poles and zeros more symmetrical about the expected crossover frequency.

    I also suggest adding a placeholder for a capacitor in parallel with R1594. This will give more flexibility in tuning the transient response if necessary.

    For the other parts, as John said, it may be easier to make a separate post to get the attention of the right person to look at them.

    Anthony