DPRG
DPRG List  



DPRG: PowerTrends 7805 switching regulator replacement

Subject: DPRG: PowerTrends 7805 switching regulator replacement
From: Jim Brown jgbrown at spd.dsccc.com
Date: Thu Jan 15 09:23:40 CST 1998

Have yall seen these drop in switching regulator replacements for
the 78xx series?

They're a little bigger, it is pinout compatible (input, common, output),
they're about 85% efficient, plus, they're rated for 1.5a.

http://www.powertrends.com/pages/pt78st1.html

The part numbers go like 78st1xx where they're equivalent to 78xx parts.

For example, the 78st105 is equivalent to the 7805.
78st112 is equivalent to the 7812.

It says it _requires_ a 100uf cap, but I guess power supply designs
should have a hefty cap anyway.

Anyone off hand know of the street price, or who has them?

- - - ____ - - - - - ___ - - - - - - - - - - - - - - - - - - - - - - - - -
    \/\_\@ ____   /  /\ __  ___          ___  http://www.dprg.org (Jan 17)
    / //\ / / /\ /--/ //\_\/\_/\ /\/\/\ /\_/\ http://users.why.net/jbrown
/__/ // // / / //__/ // / /__/ //_/_/ // // /(972)519-2868, (972)495-3821
\__\/ \/ \/\/\/ \__\/ \/  \__\/ \_\_\/ \/ \/jgbrown at spdmail.spd.dsccc.com

My employer won't claim these opinions so I'm giving them away for free.

------------------------------

More information about the DPRG mailing list