[sdiy] L7915 - Confusion

Matthew Smith matt at smiffytech.com
Fri Jan 21 23:30:16 CET 2011


Hi Folks

I've always gone on manufacturer's datasheets as authorative, but I find 
myself in a state of confusion with a power supply I'm putting together.

Using an L7915 negative regulator - one datasheet shows pin 1 as being 
input, another datasheet (also from ST) shows pin *2* as being input. 
For the record, the Eagle library agrees on it being pin 2. Both 
datasheets from ST, both refer to the TO220 package.

Can someone who's actually used them confirm either way? Ta!

Just for the record, this is a little +15/-15V 0.6A bench supply I'm 
putting together with ammeters on both rails for development and 
debugging purposes.

Cheers

M

-- 
Matthew Smith
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