TPS62110 minimum inductor size for 0.5 Amp load?

Eric Hooker1

Other Parts Discussed in Thread: TPS62110, TPS62170

Hello,

My application has limited PCB space so we need to keep the TPS62110 inductor as physically small as possible. We will use Fsync = 1 MHz. Vendor name & part number suggestions would be greatly appreciated. Thank you.

Regards,

Eric

over 12 years ago

0 Chris Glaser over 12 years ago

TI__Guru**** 150770 points

I recommend using newer devices, such as the TPS62170. It supports a such smaller solution size.

Digikey offers a wide range of vendors and sizes. As well, Coilcraft has many options at this power level.

0 Eric Hooker1 over 12 years ago in reply to Chris Glaser

Prodigy 170 points

Chris,

Thanks for your post. I would like to stick with the TPS62110 based on previous experience with it and we also have the sync signal available for it. Our application is a radio product so ripple, noise, etc are very important -- we know the TPS62110 will do the job. Have you had good results with TDK inductors?

Eric

0 Chris Glaser over 12 years ago in reply to Eric Hooker1

TI__Guru**** 150770 points

The DCS-Control topology has a lower ripple power save mode than the older TPS62170. It also operates at a higher operating frequency, so this is generally easier to filter out. But it can't be sync'd.

Yes, TDK inductors are fine.

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TPS62110 minimum inductor size for 0.5 Amp load?