Sorry, I missed that. 78xx PINOUT not device. I need to look at what I'm
reading!

Allen

> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
Of
> Bob Ammerman
> Sent: Tuesday, March 4, 2014 2:52 PM
> To: 'Microcontroller discussion list - Public.'
> Subject: RE: [EE] Heat sinking a 3.3 VDC switching regulator
>=20
>=20
>=20
> > I resolved a similar problem by putting a resistor before the regulator=
..
> > This allows the resistor to dissipate most of the heat. You may need a
> capacitor between the resistor and regulator.
> >
> > Allen
>=20
> Unfortunately this is unlikely to help when dealing with a switching
> regulator. The switcher should dissipate far less then the resistor by it=
s
> very nature.
>=20
> -- Bob Ammerman
> RAm Systems
>=20
>=20
> --
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