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  • TI Thinks Resolved

TPS61099: TPS61099

Genius 16565 points

Replies: 3

Views: 50

Part Number: TPS61099

Hi Sir,

My customer using TPS61099 and fund 3pcs( of 200pcs) FB over spec. cause Boost voltage is a little bit HIGH.

Pls double check if below FB is make sense? How about the range? 

Thanks, Ian.

  • Hi Ian:

    What's the load condition during the test? 

    If the converter operate in PFM, it's normal. As the spec in datasheet just for typical value.And generally, PFM has a little larger ripple than PWM mode.

    Best Regards

    Minqiu

  • In reply to Minqiu Xie:

    Hi Guys,

    What's the load condition during the test?

    A: no laod&at PFM mode

    If the converter operate in PFM, it's normal. 

    A: so that will be 1.031~1.039V ?? or ?

     

    Thanks, Ian.

  • In reply to Ian Wang:

    Hi Ian:

    If it's operating in burst mode, the ripple will larger than normal. And if you measure the Vout (same as FB pin), you will find the different from PWM mode. (Like figure 19 in datasheet)

    And we don't guarantee an exact spec for its range.

    Best Regards

    Minqiu

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