5V, 6V, 9V, 8V, 10V, 12V, 15V, 18V, 24V-1A Regulators using 78xx series
First choice of Fixed Regulator using family IC-78xx. It is easy to use, cheap, popular for a long time. Read more
5V
LM2678 – 3.3V, 12V, 5V 5A switching fixed voltage regulator circuits
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. Read more
Four Small 5-volts DC Regulator Circuits
This Small 5-volts DC Regulator. without IC-7805. Using transistors are interesting. If you have an old transistor or want to save. It may be a good choice. Read more