• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 446 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.

TPS61070 Noise on output with boost from max 3.2V to 3.3V

Evan W
Mastermind 39620 points
Other Parts Discussed in Thread: TPS61070, TPS61220, TPS61291

Hey there,


I'm looking to use a TPS61070 at the moment to boost from two AAA Alkaline batteries. To be safe, I want to ensure that there is not too much noise on the output voltage with a boost from 3.2V max to 3.3V. Read through the datasheet and can't seem to see any graphs on this. Is this a feasible solution to use the TPS61070 to do this? Is there any collateral to go along to support?


My primary concern is the boost with two new AAA batteries causing a bit of noise for an amplifier in a audio application I'm working on. Any comments as soon as possible would be appreciated!


Thanks!

Evan

  • 0
    TI__Mastermind 46905 points
    hello Evan
    there always be some ripple in output for a boost converter. and the ripple may get into noise frequency in very light load. what output ripple is good for you application? or you can use a LDO or the PWM converter.

    What is the output current? TPS61291 or TPS61220 should have small output ripple than TPS61070 if you need PFM device.

    Thanks
    Jasper Li