• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 72 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.

TPS22918: Does the charge pump add noise to the output?

AlexW
Intellectual 1510 points
Part Number: TPS22918

Tool/software:

Is the internal charge pump of TPS22918 introduce any noise onto the output? If so, what level of noise, or any other disturbances can be expected?

Will this switch add any noise to a low noise LDO cleaned power supply?

Thanks and regards

Alex

  • 0
    TI__Mastermind 32261 points

    Hello Alex,

    TPS22918 (all load switch devices) doesn't intoroduce noise because of charge pump.

    It's recommended to use CIN cap of 1uF to eliminate small transients and noise. 

    AlexW said:
    Will this switch add any noise to a low noise LDO cleaned power supply?

    With input cap, it should not add any noise. We haven't come across such. However, it's better to test and validate.

    Thanks 

    Amrit