Sjöström Audio DIY forum

Thanks for your replies.

Forgive my curiosity, but what exactly prevents the SMD versions handle that much current?
Where is the biggest bottleneck?
Is there a way to modify either the part selection and/or the boards to allow for my current draw requirement?

I have tight physical space requirements, hense SMD parts are a must, through hole is too bulky. How would you go about suiting the SMD versions to handling this much current? (at least theoretically, I'm not asking to modify your existing designs).

Thanks!!

heaveno Per-Anders,

Thanks for sharing a lot of great info on these regulator designs. I have a few basic questions:

My application would be having around 250-300mA continuous current at +24V. In the tech specs of JSR03 you indicate that it's capable of only 100mA continuous and 150mA peak. I also looked at your SSR01 design, which is capable of 1A and see in its BOM that you're using 0.6W resistors.

The question is, would I be OK with using SMD 1/4W resistors, 1.75W D44H11, 0.5A LM317M for my rated current/voltage? I'd feed an external 30VDC with an AC adapter, and then pre-regulate with LM317M, etc...

Thanks!