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Thread: 7805 pin compatible switching regulator ?
www.piclist.com/techref/power/priswitch.htm?key=switching
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face BY : David VanHorn email (remove spam text)



At 01:50 PM 11/13/01 -0800, Bob Ammerman wrote:
>Somebody mentioned a switching reg that is pin-compatible to the 7805 at
>Digikey. How can this be? Where does it get its inductor, etc (or is it some
>kind of 'module')?
>
>Any reference to a part number would be appreciated.

The power trends parts use a couple "turns" of track on the PCB, with an
RM-4 core clamped over them. IIRC they operate at about 1MHz.

Apparently "Power Trends" has been sucked up by TI.

http://info.digikey.com/T013/V2/337.pdf
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