Dave McGuire wrote:
..
One I've used personally is the Micrel
MIC29151-3.3BT; it is a
1.5A 3.3V linear regulator in a five-pin TO-220 package with a logic-
level active-high "enable" input.
those LDO's are really handy for making low current 3.3v for things
like MMC disks...
I used one (ZR78L033GTA) which put out about 200ma and only had 3 pins.
(but, oops, well, I guess the thread was about turning on/off)
-brad