• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 247 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS62152, Efficiency for low currents

Lars Myhre
Prodigy 40 points
Other Parts Discussed in Thread: TPS62152, TPS62080

Hi!

I am designing a power supply with the TPS62152 and trying to analyse the efficiency. The Webench design tool gives me a graph that shows the efficiency, but only for load currents down to 0.3 A. I need to know how effecient it is for currents between 0.05 and 0.3 A. I tried to use the "Operating points" section and it gave me some answers, but how reliable are they? My design will mainly operate with an input voltage around 5 V. 

Thanks!

Kind regards

Lars 

  • 0
    TI__Guru**** 151320 points

    The datasheet has efficiency curves that go down to 100uA.  You can also order the EVM and test yourself.  If your input voltage will not go above 6V, then I would recommend a lower voltage IC like the TPS62080, as it will be more efficient.

    You can post in the webbench forum to ask about their efficiency data.