A radiation and magnetic field tolerant DC-DC Point-Of-Load (POL), which enables distribution at higher voltage, with local on-detector conversion to the voltage required by the electronics, considerably decreasing the current in the cables. As main features, FEAST 2 presents bandgap, handling of dead time with adaptive logic, protection Over-Current (OVO) and Over-Temperature (OPT) and protection Input Voltage Lock Out (ULVO).
- Input voltage range 5 to 12V
- Continuous 4A load capability
- Integrated Power N-channel MOSFETs
- Adjustable switching frequency 1-3MHz
- Synchronous Buck topology with continuous mode operation
- High bandwidth feedback loop (150KHz) for good transient performance
- Over-Current protection
- Under-voltage lockup
- Over-Temperature protection
- Power Good output
- Enable Input
- Selectable Power Transistor size (5/5th or 2/5th) for improved efficiency at small loads (<600mA)
- Radiation tolerant: TID up to >200Mrad(Si), displacement damage up to 5.1014n/cm2 (1MeV-equivalent), continuous operation during exposure to heavy ions of LET up to 64MeVcm2mg-1 with short transients below 20% of the nominal Vout (no destructive event, no output power interruption).
- Nuclear industry
- Point Of Load in distributed power systems where either radiation tolerance or magnetic field tolerance, or both, are required.
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