Description
DCDC1100 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 DCDC1100, 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 5-11 V 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
- Displacement damage up to 5•10¹⁴ n/cm² (1MeV-equivalent)
- Continuous operation during exposure to heavy ions of LET up to 64 MeV∙cm²/mg with short transients below 20% of the nominal Vout (no destructive event, no output power interruption)
Module features
Continuous 4A load capability
- Integrated Power N-channel MOSFETs
- Adjustable switching frequency 1-3 MHz
- Synchronous Buck topology with continuous mode operation
- High bandwidth feedback loop (150KHz) 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
