Inductor selection for DC/DC

[atwoz]

Hello,

I'm designing a DC to DC converter, 12v to 5v @ 300mA. I need a 10uH inductor for the job. I was using some big power inductors but I think its overkill and that I could use a smaller inductor.

What do you guys think of the following inductor?

http://www.newark.com/taiyo-yuden/cbc3225t100mr/power-inductor-10uh-760ma-20/dp/30K5409?in_merch=Popular%2520Inductors,%2520Chokes%2520And%2520Coils

Thanks!

[T4P]

If you only need less then the SRF then of course everything's good

[free_electron]

without knowing what controller chip you are using , or at least what switching frequency , mode (hysteretic , constant current, contstant on time ) we cannot advise ...

[atwoz]

Sorry, the controller is the NCP3170A (from ONSemi) and it runs at 500kHz.

[free_electron]

ideally you would use a 4u7 part with that thing. i'd stick in a vls3012 or vlf4010 series from tdk.
the taiyo you selected will work too. the only thing i don't like about the taiyo is that it is a non-shielded coil. the TDk's i gave above are shielded

[szhighstar]

if rate current can meet your requirement, you can select, we can also make the chip inductor.