The venerable three terminal fixed and adjustable regulators have
been around for decades.
You can breadboard a precision adjustable current source with a
317 and a bunch of discrete components. Many companies have
improved upon the three terminal regulator by adding additional
pins. I remember a datasheet that showed a four terminal regulator.
The forth pin allowed for easy current limiting without the use of
current limiting resistors, etc. You simply applied a control voltage
to the forth pin to limit the output current.
There are so many variations on the original three terminal linear
regulator, I could search for many hours without finding the IC
I'm looking for. Can someone point my browser in the right direction?
been around for decades.
You can breadboard a precision adjustable current source with a
317 and a bunch of discrete components. Many companies have
improved upon the three terminal regulator by adding additional
pins. I remember a datasheet that showed a four terminal regulator.
The forth pin allowed for easy current limiting without the use of
current limiting resistors, etc. You simply applied a control voltage
to the forth pin to limit the output current.
There are so many variations on the original three terminal linear
regulator, I could search for many hours without finding the IC
I'm looking for. Can someone point my browser in the right direction?