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  • TI Thinks Resolved

TPS61089: VQFN package and SOT package

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Replies: 15

Views: 337

Part Number: TPS61089

Hi  All,

Long chat with ti export I have selected IC TPS61089 for my commercial project.  But at the design stage i found that IC manufactured VQFN package only . Hence can you please advice me about SOT package that have similar specification to  TPS61089 

Thanks in advanced 

  • Dear Sir,

    Please specify the Vin, Vout and your maximum Iout . so that I can choose the most fit one for you.

    Best Regards,
    Helen

    Boost DC/DC Solution

  • In reply to Helen chen:

    Vin 4.5 and 15v
    I out >= 2
    Vout > 5 < 12 Adjustable

    Below 6 Watts

    Requirement for line follower robot

    Thanks in advanced

  • In reply to PA3040:

    TPS61089 only support Vin<12V application. You can take a look at TPS61178.

    Best Regards,
    Helen

    Boost DC/DC Solution

  • In reply to Helen chen:

    Hi Helen

    Thanks for info

    I believe that TPS61178 identical for my requirement. Is it possible to adjust the output voltage between 7.5 to 15v using preset then what is the calculation for preset value and how it apply

    Thanks
  • In reply to PA3040:

    What is the Vout you need? just '7.5V and 15V two point' or '7.5V to 15V a range'?

    Best Regards,
    Helen

    Boost DC/DC Solution

  • In reply to Helen chen:

    There is no fixed value and I need to Adjustable it between 7.5v to 15v using variable resistor

    Thanks in advanced
  • In reply to PA3040:

    You can inject a voltage signal into the FB pin to change the Vout. The circuit is similar to the attached file.

    Best Regards,
    Helen

    Boost DC/DC Solution

  • In reply to Helen chen:

    In my case I can not arrange external PWM signal . Therefore PWM can not be arranged

    Can we able to change the voltage by connecting variable resistor to R3 in above picture
  • In reply to PA3040:

    Dear Sir,
    Yes, you can connect R3 to GND. R3 can be a variable resistor.

    Best Regards,
    Helen

    Boost DC/DC Solution

  • In reply to Helen chen:

    Thanks

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