Lpc2000

----- Original Message ----- 
From: "David Willmore" <willmore@...>
To: <lpc2100@yahoogroups.com>
Sent: Tuesday, December 23, 2003 4:56 PM
Subject: [lpc2100] power question


>
> Hello, all.
>
> All of the power usage comments I've seem never mention
> which supply the current draw is for.  This got me
> thinking what kind of power supply curcuits everyone
> is using.  That lead to a few questions:
>
> What is the current draw at max/sleep for each (3.3 and
> 1.8V) supply?

The 3.3 V supply current will mainly depend on the current taken by the
I/Os.

>
> Does anyone know of a simple chip that does two channels
> of buck mode switching step down?

I think that TI makes this sort of thing.

>
> Is anyone using anything but linear regulation?
>
> I don't remember seeing them, but there have to be power
> supply sequencing requirements.  Does anyone know what
> they are?  (page numbers in the manual where I failed to
> read them)


Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html