• State Verified Answer
  • Locked Locked
  • Replies 10 replies
  • Subscribers 74 subscribers
  • Views 9090 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 110103
Options
This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Inductor Considerations for NRF 52832 DC/DC Converter

edougal

Hey, I was considering designing a piece of hardware using the NRF52832 and I want to use the DC/DC converter to save battery life. There are no considerations for choosing an inductor in the LC filter given in the NRF52832 product specification. Why are two inductors used in series in the NRF development board (L2 is 10uH and L3 is 15nH)? Can only L2 be used?

Thanks.

Parents
  • 0

    I also think about using just one inductor - it can be ferrite, with approx 10 uH inductance and good Q at 8MHz of switching and losses rising well above that it should be OK. I'm not sure about performance at 2.4 GHz (any switching noise leaking may affect the receiver performance), as ferrites datasheets only sometimes extend beyond 1GHz. Regards Tomasz

Reply
  • 0

    I also think about using just one inductor - it can be ferrite, with approx 10 uH inductance and good Q at 8MHz of switching and losses rising well above that it should be OK. I'm not sure about performance at 2.4 GHz (any switching noise leaking may affect the receiver performance), as ferrites datasheets only sometimes extend beyond 1GHz. Regards Tomasz

Children
No Data
Related
Terms of service