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tps54329 Dynamically Adjustable Output application question.

Chen Bogey8
Mastermind 9990 points
Other Parts Discussed in Thread: TPS54329, TPS62300, DAC6571

Dear Sir

Good days,

We need Dynamically Adjustable Output volatge design and output range is 1.8V~3.3V 3A.

we choice DC2DC is TPS54329. we have search related data in TI website.

we found SLVA196, it is TPS62300+DAC6571, but it is usd adj pin to Adjustable.

we have find another document SLVA251. it seems use D2D fb pin to Adjustable.

May we check if we can use TPS54329(or all D2D) to design in Dynamically Adjustable Output volatge application??

if yes, the design way is like SLVA251??

                                                    Best regards,

                                                                    Bogey

  • 0
    TI__Guru**** 191445 points

    We do not have a lot of experience with dynamic voltage changes with TPS54329.  The typical method would be to change the lower FB resistor.  The other external components would be the same for that output voltage range.  I thnk the performance depends on the slew rate of the voltage change.  Do you have a specification for it?