TPS54331: Schematic review

Rhea Gao

Expert 2470 points

Part Number: TPS54331

Hi，

The customer uses TPS54331 and TPS7A2033PDBVR, please help to review the schematic.

Thanks~

over 1 year ago

0 Aurora Tie over 1 year ago

TI__Genius 15830 points

Hi Rhea,

Please ask customers to use an 8.2uH inductor. For compensation network parameters, please refer to webench recommended results. There are no obvious problems in other parts. Thanks.

Aurora

0 Rhea Gao over 1 year ago in reply to Aurora Tie

Expert 2470 points

Hi Aurora,

The customer is required to change the inductor to 8.2uH. What is the impact of this inductor? What is the main function to achieve?

Thank you.

0 Aurora Tie over 1 year ago in reply to Rhea Gao

TI__Genius 15830 points

Hi Rhea,

Currently, the customer use a smaller inductor. Therefore, the ripple value of its inductor current will be larger. In this case, the loss of the inductor will be bigger and it will be more likely to saturate. Generally we choose Kind between 0.1~0.3. Thanks.

Aurora

Power management

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TPS54331: Schematic review