TPS61099: TPS61099

Ian Wang

Mastermind 25055 points

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.

over 4 years ago

0 Minqiu Xie over 4 years ago

TI__Mastermind 21565 points

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.

0 Ian Wang over 4 years ago in reply to Minqiu Xie

TI__Mastermind 25055 points

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.

0 Minqiu Xie over 4 years ago in reply to Ian Wang

TI__Mastermind 21565 points

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.

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TPS61099: TPS61099