Products         Rad-hard ICs         Power Series        DC/DC Point-of-Load Converter


DC/DC Point-of-Load Converter

The MAG-PSU creates local distributed supply voltage for instrumentation or robotics in high radiation environments.


MAG-PSU is a single-phase synchronous buck converter developed to provide an efficient solution for the distribution of power in High Energy Physics experiments. As such, it has been designed for flawless functionality in a harsh radiation and magnetic field environment. The monolithic construction of MAG-PSU, with the integration of the power train and the bootstrap diode with the controller, makes the converter a space-efficient solution to provide POL regulation from a 5-12V supply rail. Its protection features include Over-Current, Over-Temperature and Input Under-Voltage to improve system-level security in the event of fault conditions. The chip temperature increase in the application can be monitored via a dedicated analog signal (PTAT).

Radiation hardness

  • TID up to >2 MGy(Si)
  • SET/SEU: > 65 MeV∙cm²/mg

Module features

Continuous 4 A load capability

  • Integrated Power N-channel MOSFETs
  • Adjustable switching frequency 1-3 MHz
  • Synchronous Buck topology with continuous mode operation
  • High bandwidth feedback loop (150 KHz) for good transient performance

Protection features

  •  Over-current protection
  •  Over-temperature protection
  •  Input under-voltage lockup
  •  Line protection


  • Accelerators
  • Medical
  • Fusion reactors
  • Power plants
  • Space
  • Radiation hardened cameras

Related articles

Request the datasheet

Request the datasheet​

Thanks for
reaching out!

We will come back to you as soon as possible.

Keep in touch

Thanks for
reaching out!

We will come back to you as soon as possible.

Keep in touch