Rookie question: I have a LM2596 I want to use in a project, but I don't have any idea what method to use to mount it on the board. Does it require a heat sink? Any suggestions?

 

Hello,

If you use the throughhole version, the datasheet gives this example on page 31:



Bertus

 

What case style is it?,

 

Rookie question: I have a LM2596 I want to use in a project, but I don't have any idea what method to use to mount it on the board. Does it require a heat sink? Any suggestions?

SMD case? Solder it down to a large area on the board. If you want to mount it to a heat sink a spring clip is typical (with heat sink compound). Another not so hood option when using an aluminum heat sink is to put heat sink compound on it and glue it down with a bulky glue like E6000. I have used this technique with suitable success on large LEDs.

 

SMD case? Solder it down to a large area on the board. If you want to mount it to a heat sink a spring clip is typical (with heat sink compound). Another not so hood option when using an aluminum heat sink is to put heat sink compound on it and glue it down with a bulky glue like E6000. I have used this technique with suitable success on large LEDs.

Thanks for the answer. I'm looking for a heat sink as we speak. This is my first foray into the world of electronics. Talk about a learning experience.

 

What case style is it?,

It's a metal electrical box. I would hate to have to change it now.

 

It's a metal electrical box. I would hate to have to change it now.

Electrical boxes tend to be sheet steel welded into a box shape - die cast aluminium boxes have much better thermal conductivity.

A lot of people use any convenient steel for the heat sink, but only if the device is run well under its recommended maximum ratings.

 

It's a metal electrical box. I would hate to have to change it now.

Clearly you're not into electronics! case style means what package is the regulator,
TO220, T0263, To5, etc...

 

Hello,

Wich package model do you use?



The datasheet is showing TO-220 through hole and TO-263 SMD.

Bertus

 

Hello,

Wich package model do you use?

View attachment 123620

The datasheet is showing TO-220 through hole and TO-263 SMD.

Bertus

The TO263 can be soldered directly to a steel enclosure - but its very difficult to do without frying the device. You also lose any isolation unless its built into the package.