5V Switching Regulator, Very Simple Circuit

Switching Regulator for High Power Efficiency

When you should regulate a high voltage to a much lower voltage, switching regulator must be the only choice. Fortunately,  a simple switcher integrated circuit chip is available, let you build a complete step-down switching regulator using five components.

5v switching regulator circuit schematic diagram

The switching regulator IC used in this circuit  is LM2575 series like we use in thye previous variable switching regulator, but we use the fixed type for the simplest design.  LM2575-5.0 is a fixed 5V output switching regulator IC, capable of converting 7-40V DC to 5V DC at 77% efficiency. LM2575HV-5.0 can be use for higher input voltage up to 60V. This circuit is designed as step-down switching regulator, so the input must be few volts higher than the specified output voltage.

This entry was posted in Power Supply and tagged . Bookmark the permalink.,
Possibly Related to "5V Switching Regulator, Very Simple Circuit" Circuits

  • Variable Power Supply 1.2-55 Volt, Uses Switching Technology for High Efficiency
    Designing wide range variable power supply using linear regulator is easy, but suffer terrible efficiency when it should regulate 60 Volt constant source  down to 5 Volt or lower, the efficiency would be 5/60 or 8.33% at maximum effort, really … Continue reading →...
  • LM317 Low-Cost 3A Switching Regulator
    A switching voltage regulator circuit shown in the schematic diagram here can be a low cost solution for your high efficiency requirement electronic circuit design. Unlike other switching regulator circuit that uses special purpose integrated circuit (IC), this circuit uses … Continue reading →...
  • Low-Power Switching Regulator
    A circuit of low-power switching regulator is shown in the schematic diagram below. This circuit can give output voltage of 5V from 9-V source. The efficiency of this circuit is 80% and the output capability of this circuit is 50-mA. … Continue reading →...
  • Extending Battery Life with Switching Regulator
    A normal 9V battery would be considered as dead battery when the voltage falls below 7 Volts. With this switching regulator, a  lifetime of a 9V battery will be extended by boosting the voltage if the battery voltage falls under … Continue reading →...
  • 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 … Continue reading →...

Comments are closed.