Found in a Linear Technology documentation from the 1990s, this circuit has the voltage adjusted by resistors R1 and R2 according to the formula given in the diagram.
This circuit is from an old publication from 1977 and can be implemented with more modern...
This basic buffer circuit can be implemented with other operational amplifiers. The circuit is...
This circuit can be applied to other 3-terminal regulators and equivalent transistors can be used....