LM317 Regulator

Thread Starter

justin1269

Joined Jan 11, 2012
1
Hi,

I am using a National Semi part LM317 regulator, and I wanted to know whether someone can help me with a question.

The Question;

If I have a 24vdc signal coming in and I reduce it to 5vdc does it change the response time of the signal?

Thanks
WJ
 

THE_RB

Joined Feb 11, 2008
5,438
The LM317 is quite fast and has a quick response time if you don't use any caps, or use very small caps.

What is the fequency/periods of the incoming 24v square wave?
 

crutschow

Joined Mar 14, 2008
24,325
If you are trying to reduce a 24VDC digital signal to 5V with low power output, there are many betters ways then to use an LM317 regulator.
 

Wendy

Joined Mar 24, 2008
21,938
The point is it is a voltage (or current) regulator for a power supply. I have seen exactly one schematic where it was used as part of an oscillator, I've never tried it for that application.

So if you have a IC that required 5VDC, such as TTL, then this chip would be great for the application. It would convert a 12VDC power supply to a 5VDC power supply.

One other thing, schematics are the language of electronics. When you ask a question it is pretty important to include a schematic for your application. Something like this perhaps:

..


If you don't know how to attach a schematic just ask.
 
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