• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 389 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.

Boosting from 2V to 25V with 3 Watts of output power

treez
Intellectual 970 points
Other Parts Discussed in Thread: TPS40210, TPS61175, TPS43000

Hello,

Do you know of an IC from ti.com that can do the above?

  • 0
    TI__Guru**** 166076 points

    The TPS61175 can be operated in a split rail configuration where you tie a separate >3V supply to the IC's Vin and then the 2V input supply to the inductor for the power stage.  If you don't have a separate >3V supply, then I suggest using one of our TPS60xxx or REG710 charge pumps to provide that supply.  Note that efficiency will not be very good because the TPS61175's internal FET is a bit too resistive for such a low input voltage.  You could do that same thing with the TPS40210, a pick a very low Rdson FET to boost efficiency, but you need a >5V supply for that IC. 

    The TPS43000 can do this in one IC but it is expensive and cumbersome to design.