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MAG-PSU

DC/DC Point-of-Load Converter

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

Description

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

Applications

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

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