This type of circuit and with this integrated circuit appears several times on this website. The circuit has the components dependent on the desired current in the load.
This circuit was found in Motorola documentation from 1968, using high power transistors and...
Also able to use the LM291, this circuit was found in a Radio Electronics magazine from October 1977....
This circuit generates a linear sawtooth signal. The circuit was found in the December 1992 issue...