I have the data sheets of the 2 but I can´t find any difference between the two?
Is there any?
Except for the price....😕
Is there any?
Except for the price....😕
Hi Ryssen,
There was a nice post from jbau about LM317 and their noise/power response from this diyaudio link: Another look at the LM317 and LM337 regulators
Well worth reading...
There was a nice post from jbau about LM317 and their noise/power response from this diyaudio link: Another look at the LM317 and LM337 regulators
Well worth reading...
there are some small differences between the linear tech version and the generic "national semi" version.
LT version have tighter tolerance and don't need all the external protection diodes the non-LT versions need to prevent damage from cap discharge. There's probably some differences in frequency response behavior and noise, but I don't remember.
LT version have tighter tolerance and don't need all the external protection diodes the non-LT versions need to prevent damage from cap discharge. There's probably some differences in frequency response behavior and noise, but I don't remember.
I'm not sure, but as far as i remember Dimitri mentioned (many year ago on a different forum) that Linear (LT) used better "cleaner" silicon in their V refs than others used in the LM series.
That's why the LT series had lower noise.
I dont know how it is now when LT is a part of ADI, I guess its the same product but different name and pricetag.
An LT317A and an LM317 from Linear Technology are side by side in this datasheet:
https://www.analog.com/media/en/technical-documentation/data-sheets/lt0117.pdf
The LT317A is indeed more accurate and has better line and thermal regulation (and may need one diode less to protect it if the input voltage should drop quickly, which it can't do anyway in most circuits).
https://www.analog.com/media/en/technical-documentation/data-sheets/lt0117.pdf
The LT317A is indeed more accurate and has better line and thermal regulation (and may need one diode less to protect it if the input voltage should drop quickly, which it can't do anyway in most circuits).