28V DC To 5V DC Switch-Mode Converter (Regulator)
This is a 28VDC to 5VDC switching converter circuit. As a switch-mode voltage regulator, this circuit gives higher efficiency than linear regulator type. Using the National Semiconductor LM1575-5.0, this circuit can be used to convert 28VDC To 5VDC with efficiency of >80%. This circuit can be used as a 5V source @ 1A. Here is the schematic diagram of the circuit:
