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Boost converters

Things

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I'm looking for a few suggestions on a product I'm working on, if anyone has any info they could share :)

Basically I need a boost converter to run off a single LiPo cell and give me 5V out. Catch is I need it to be as small as possible without being in an annoying package (QFN and BGA aren't really options, but TQFP/MSOP/SSOP/TSSOP, basically anything with leads is fine).

I was considering completely integrated chip devices, but I'm not sure they're available in a high enough current. I'd probably be looking at a max of 100-200mA. Failing that, are there any boost IC's you can recommend to suit these specs with minimal component count (and perhaps an enable pin) ?

Cheers :)
 
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rhd

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For something simple and small, couldn't you just take an LM3410 and turn it back into a constant voltage regulator? Like this:



Or, if they're small enough, you can just buy things like this:

http://www.ebay.ca/itm/DC-DC-Conver...199?pt=LH_DefaultDomain_0&hash=item1c3ee3322f

http://www.ebay.ca/itm/Mini-PFM-Con...756?pt=LH_DefaultDomain_2&hash=item2c83a916dc
 

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Things

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Hmm, that IC is on the right track but 1A probably makes it a bit unnecessarily big. But I'll have a look.

rhd, I could do something like that, yeah, though I'm concerned about the size of the inductor. The whole PCB will probably be max of 2cm in each dimension, and I also need to fit a TQFP microcontroller, single cell battery management, USB connector, some other discrete stuff and a switch on it, while trying to keep it as thin as possible. Premade modules are out of the question unfortunately :(
 
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