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TPS53319: Schematics review request

Kazuhiko Hirano
Genius 14968 points
Part Number: TPS53319

Hello,

 

My customer designed Vin=12V, Vout=3.3V and Iout(max)=8A buck converter circuit using TPS53319.

Please review their schematics and provide feedbacks.
tidrive.itg.ti.com/.../e6926fb2-d9ff-4854-9b3f-08ff68b4de19

 

Best regards,

 

K.Hirano

  • 0
    TI__Mastermind 23775 points

    Here are my suggestions

    Change R3034 to 1.13kOHm
    Change L3003 to 1uH or 1.5uH  using the 0.68uH iripple is very large  for 12V to 3.3V at 500kHz
    Do not know the purpose of D3004 on C3021 on LL node. 

    Use the Figure 11.-1 in datasheet for pcb layout examples