LM723 vs LM317 regulator choice?

bloguetronica

Joined Apr 27, 2007
1,371
I've used several regulators, including the LM317 and the LM7805. For high precision, I would go for a discrete design with a pass transistor (NPN) and an op-amp. It depends on what you want.

Kind regards, Samuel Lourenço
 

panic mode

Joined Oct 10, 2011
1,783
agreed with prev posts. 723 is fine but required more external components, adjustable range was not continuous, it was split into two (below and above some 7V if i recall) - unless one adds some mods like adds neg rail.
 

crutschow

Joined Mar 14, 2008
23,527
Depends upon your bench supply requirements.

The LM317 is very simple to use, and is nearly bullet-proof as it has both short-circuit and over-temperature protection.
But it's limited to about 1.5A and has a minimum output voltage of 1.2V.
 

Thread Starter

Fluxor1964

Joined Jun 11, 2015
182
I only need an Amp at about 3 - 30v since my interest is in small signal amps and pre amps

thanks guys, i'm going to use the LM723.
 
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