For the TPS62177DQCR switching regulator, the 10uH inductor is difficult to source. Can you recommend a few other parts

David Epperly

For the TPS62177DQCR switching regulator, the LPS4012-103M 10uH inductor is difficult to source. Can you recommend a few other parts?

I'd like something small and inexpensive.

Please recommend a few options / tradeoffs.

PS: My application uses about 50mA average and 400mA during peak usage for several hundred msec. It is essential that power be clean during that burst.

over 9 years ago

0 Chris Glaser over 9 years ago

TI__Guru**** 150950 points

Please see table 3 in the data sheet.

0 David Epperly over 9 years ago in reply to Chris Glaser

Prodigy 50 points

Thanks, RTM - I missed it...

0 David Epperly over 9 years ago

Prodigy 50 points

On a related note, is an RF shield recommended in order to pass FCC unintended radiation requirements? Do most designs using this component place an RF / magnetic shield around this device and the inductor (and capacitors)?

0 Chris Glaser over 9 years ago in reply to David Epperly

TI__Guru**** 150950 points

No, this is not typically required from what I have seen. Using a shielded inductor is recommended.

Power management

Power management forum

For the TPS62177DQCR switching regulator, the 10uH inductor is difficult to source. Can you recommend a few other parts