Which inductor type for boost converter?

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Which inductor type for boost converter?

Postby peterloron » Thu Dec 23, 2010 12:59 pm

Howdy. Can you provide some more information on which type of 22uH inductor is used for L1? I bought the PCB and am slowly gathering the parts to put it together. I have a 23uH axial inductor, but no SMT one, so I'm probably going to place an order and need to know which ones to buy...

Thanks!

-Pete
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Re: Which inductor type for boost converter?

Postby mightyohm » Thu Dec 23, 2010 6:01 pm

L1 is a 22nH 0805 chip inductor (not wirewound). The specs are pretty easy so most 22nH 0805 footprint inductors are probably fine for this. I'm using a Taiyo Yuden LB-series part: LBR2012T220K.
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Re: Which inductor type for boost converter?

Postby peterloron » Thu Dec 23, 2010 7:41 pm

Thanks for the response. FYI...the schematic posted at the link below shows L1 as 22uH, not 22nH.

http://mightyohm.com/files/hvrescue2/HVRescue_Shield_r2_schematic.png
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Re: Which inductor type for boost converter?

Postby mightyohm » Thu Dec 23, 2010 8:11 pm

That's the RF engineer in me, sorry, 22uH (microhenries) is correct.
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