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Re: deriving 3.3V from 5V ..

To: pci-sig@znyx.com
Subject: Re: deriving 3.3V from 5V ..
From: Mark van Nobelen <Mark.van.Nobelen@chess.nl>
Date: Thu, 06 Dec 2001 08:51:50 +0100
Organization: Chess eT
References: <005f01c17e0e$302ecd20$4fc809c0@dinesh>
Resent-Date: Thu, 6 Dec 2001 00:01:09 -0800
Resent-From: pci-sig@znyx.com
Resent-Message-ID: <YCwatC.A.OeF.lTyD8@electra>
Resent-Sender: pci-sig-request@znyx.com

Hi din,

Many motherboard do not supply the 3V3. Therefore it is safer to use the 5V, which is present in all motherboards

Mark

dinesh@cosystems.com wrote:

Hi experts, Sub: Universal PCI card I have referred a number of universal PCI card designs. One point I have noticed is, none of the cards are using the 3.3V supply from the slot - instead deriving the 3.3V from 5V by putting a regulator.But even 5V PCI slots are provided with 3.3V supply rails. Is there any solid reason for this ?? thanks in advanceDin

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Mark van Nobelen
Engineer
Chess eT
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P.O.Box 5021
2000 CA Haarlem
Phone: +31-23-5 149 126 (249)
Fax: +31-23-5 149 191
e-mail : mark.van.nobelen@chess.nl
http://www.chess.nl

References:
- deriving 3.3V from 5V ..
  - From: dinesh@cosystems.com

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