A voltage regulator is a system designed to automatically maintain a constant voltage.  A simple voltage regulating circuit can be created by utilizing this regulator and 2 capacitors.

TECHNICAL DETAILS
Package / Case: TO-220
RoHS: Yes
Output Voltage (VDC): 24 Positive
Max Input Voltage (VDC): 35
Max Current (A): 1.5
Operating temperature: -5C° ~+150C°