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