help with lm317 driver

[GreenLaser]

hey what sort of lm317 chip do i use a lm317t or lm317k??
cheers

 

[lasersbee]

If you check the data sheets for the LM317...
You will see that the (K) is the TO-3 case and the (T) is
the TO-220 case that most of the members here use...


Jerry

 

[GreenLaser]

i will get the T as i see it is used most its just wondering if i could use k as it is easier for me to get
thanks

 

[Greenmechanic]

As Jerry stated, you should use the LM317T.
If you are pushing it at higher current, you will need a heat-sink for the regulator, using the (T) case you have a hole to bolt the H/S on, with the (K), you will have to use thermal adhesive.
Plus the (K) takes up a lot more room.

 

[GreenLaser]

thanks does antone have a pic of there lm317 driver on pcb?
cheers