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Lpc2000

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Message

Re: 2103 forces dual supply?

2006-04-27 by Ed Schlunder

--- In lpc2000@yahoogroups.com, Herbert Demmel <dh2@...> wrote:
>
> At 15:24 26.04.2006 +0000, you wrote:
> >I have looked on Digikey and found some regulators which have both
> >3.3V and 1.8V in one package :-
> >
> >PQ2L3182MSPQ and LP2966IMMX-1833.
> >
> >I have not tried them but they may be work checking out.

Quick heads up for all you guys looking at fixed voltage regulators
for the LPC2103... There's an errata on the 1.8V pin that says you
should provide 1.95V instead because there will be too much internal
voltage drop to operate properly at full speed with all peripherals. Doh!

As a result, I ended up choosing an adjustable regulator on my BBMICRO
development board for the 1.8V pin, even though it meant using more
board space than a fixed regulator would have used.

Here's the LPC2103 Errata:
http://www.standardics.philips.com/support/documents/microcontrollers/pdf/errata.lpc2103.pdf

---
K9spud Microcontroller Electronics
http://www.k9spud.com/

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