power supply Regulator 12V 5A by LM2678-12

This is circuit Switching power supply 12V 5A.
Or circuit dc converterstep down voltage.
Use IC LM2678-12 SIMPLE SWITCHER High Efficiency
5A Step-Down Voltage Regulator.
Input DC Voltage 40Vmax and 16Vmin 5A.
Detail more see in image circuit.