Here is circuit switching regulator 5V 5A for digital circuit. Use IC LM2678-5.0 is High Efficiency 5V 5A Step-Down Voltage Regulator This is good power supply, small size and do not hot.
All about switching power supply circuit diagram and PCB
Although the input voltage change between 5V and 13V but the output voltage is steady at 12V
This is DC switching power supply circuit with PCB, adjustable voltage 0-45V at 8A current max. low ripple and noise. full protection as most good supply [...]
How to use TL497 as the switched mode power supply schematic that output current of 500mA, and there are 3 model: step down,step-up and inverting voltage converters. Now, a switching…
It is a great idea. but It is suitable for an old hand!
A good DC switching power supply circuit form old computer that not used. It has used powerful, durable and works great.
This is the DC switching regulator Voltage 5V at current 3A. It is make for digital circuit. The important part of the circuit is LM2673, it is 3A Step-Down Voltage…