This circuit is AC/DC 12V Regulator Power Supply, AC input 12-24V, output 5V. This is suitable for any circuit which require fix voltage 5V/ Max at 1A. Small PCB size 5.1cm x 3.0cm.

Note : U1 is changed to 7805 to get output 5VDC. Other components are the same as 12VDC Regulator