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[Project] Power supply for Kbd/LCD device
- To: <ukha_d@xxxxxxx>
- Subject: [Project] Power supply for Kbd/LCD device
- From: "Keith Doxey" <ukha@xxxxxxx>
- Date: Tue, 29 May 2001 22:53:00 +0100
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
Done a bit of searching and the following chips look useful.
All accept upto 40V DC supply so a 40V feed with 36v backup (3 car
batteries) will keep stuff working even when the power goes off.
All are Maxim chips http://www.maximic.com
Device Current Vout
MAX 724 5A 2.5 - 35V
MAX 726 2A 2.5 - 35V
MAX 727 2A 5V
MAX 787 5A 5V
MXL 1074 5A 2.5 - 35V
MXL 1076 2A 2.5 - 35V
Datasheets are on the Maxim site for those interested.
I have ordered samples to see what I can "knock up". The fixed
voltage
regulators require only 6 external components and the adjustable ones
require 7 external components.
Keith
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