Is there a Voltage regulator with high/low (on/off) pin?

[prototypingfool]

I'm whipping up a circuit that uses +15V via a standard Voltage regulator. I'd like to have the regulator shut off, or turn off, when a transient voltage is applied.
i.e. a separate DC voltage is introduced into my circuit and i want to use that to shut off the regulator.

Can a diode do this?

Thx,

 

[IRstuff]

"Can a diode do this?"

As an EE, you should already know the answer to this question.

TTFN

FAQ731-376

 

[prototypingfool]

thanks, sure a diode can do that would rather find a neat voltage regulator that does it similar to a diode. Or what i meant was can anyone suggest a good diode circuit that can do it.

Thanks for your help

 

[IRstuff]

Is this for school?

TTFN

FAQ731-376

 

[benta]

There are heaps of vregs out there with enable input.

Benta.

 

[prototypingfool]

Benta, thanks very much for your straight forward answer. Wish everyone was as helpful.

cheers!