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DPRG: PowerTrends 7805 switching regulator replacement

Subject: DPRG: PowerTrends 7805 switching regulator replacement
From: Roger Arrick rarrick at ix.netcom.com
Date: Fri Jan 16 19:36:53 CST 1998

Maxim also makes the switcher chips.

Roger.

    /---------------------------/---------------------------/
   /      Roger Arrick         /     Arrick Robotics       /
  /    roger at robotics.com     /       P.O. Box 1574       /
 /  http://www.robotics.com  /   Hurst, Texas 76053 USA  /
/---------------------------/---------------------------/


>Jim wrote:
> Using a "simple switcher" chip and a coil, would it be any cheaper
> than the $16 or so for the 78ST105 chip?  Can you name one of the
> chips that you were mentioning?  Would the circuit be very difficult?
> Could you get the >85% efficiency that the 78st105 does?
> Inquiring minds want to know.

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