Step-down DC/DC converter

This circuit converts 12 V from the car battery to 5 V. It can be used to drive low power units such as the dashboard cluster.

Block diagram

Design considerations

  • Point of load non-isolated DC.DC
  • Asynchronous buck converter circuit
  • Economical, two-MOSFET design
  • Standard efficiency
  • Step-down of voltage while stepping up current

The Power MOSFET Application Handbook

Drawing on over 20 years’ of experience, the Power MOSFET Application Handbook brings together a comprehensive set of learning and reference materials relating to the use of power MOSFETs in real world systems.

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