[sdiy] Negative LDO Regultors - where are they all?!

[Tom Bugs]

Cheers Paul.

Cool - I can get some from RS or wait a couple of weeks for samples from 
Linear Systems.

No, not cheap... But that's not the end of the world in this case.

Oh - looks like there are the TI UCC284 & UCC384 - 500mA again..

Hmm - I should check the LM2991 actually - think I picked a few up recently.

Ongoing cheers for any relevant comments!

Tom





On 29/09/2011 15:25, Paul Schreiber wrote:
> Linear Tech LT1175. Comes in several package styles, adjustable. Even 8-pin DIP!
>
> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LT1175CN8%23PBF-ND
>
> I didn't say they were *CHEAP* (cough).
>
> Paul S.
>
>
>
>
> --- admin at bugbrand.co.uk wrote:
>
> From: Tom Bugs<admin at bugbrand.co.uk>
> To: Synth-DIY DIY<Synth-diy at dropmix.xs4all.nl>
> Subject: [sdiy] Negative LDO Regultors - where are they all?!
> Date: Thu, 29 Sep 2011 15:02:12 +0100
>
> Hi,
>
> Wondering if people can suggest to me *ANY* sources of low dropout
> negative regulators - pref. with specs: adjustable Vout (must do -15V)
> and current 500-1500mA (or more even)
>
> I've been finding it really hard to track down something suitable..
> Loads of positive LDO regs, but negative ones are really thin on the
> ground.
>
> Pretty much the only one I've come across that looks ok is the LT3015 -
> but that is currently not stocked by many regular distributors.
> The LM2990 looks as thought it may be of use - but I'm distinctly put
> off by the description 'Designed for vehicular applications'
>
> Thanks in advance for any pointers.
>
> Tom
>

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