PSA60TR [STMicroelectronics]

The PSA60 is a high performance digital controller featuring the innovative and patented resonant / non-resonant ST VCOT™ control loop that allows to implement a high efficiency DC-DC converter in single-stage conversion directly from the 60 V bus.

In combination with PSA satellites, the device is able to implement a scalable power supply with output power in excess of 1 kW featuring Auto Cell Shedding and PFM to optimize the overall efficiency maintaining a >90% baseline over the whole current range without compromising the load transient and DVID response.

The PSA60 can be fully configured through PMBus™ to minimize external component count. Full set of telemetry is provided including BBR, CFP and primary / secondary side telemetry.

The device assures fast and independent protection against overcurrent, over/under-voltage and FB disconnection.

The PSA60 is available in VFQFPN68, 8x8 mm package with exposed pad.

• High performance resonant / non-resonant digital control loop STVCOT™
• Drives up to 6 PSA satellites
• Compliant with Intel VR13, VR13.HC and AVS protocols
• Fully configurable through PMBus™ rev1.2
  • Telemetry for primary and secondary
  • Full IC configuration / management
  • Voltage positioning
• Advanced power management
  • Auto cell shedding with PFM
  • Low power 1.8 V logic
• Programmable protections
  • OV / UV and FB disconnection
  • Analog and digital overcurrent protection (OCP)
  • Current sharing warning
  • Black box recorder (BBR)
  • Catastrophic fault precursor (CFP)
• Embedded non-volatile memory (NVM)
• Primary µC interface for telemetry (PuC)
• Single-wire synchronous rectifier driver
• RST and EN1V8 for low power mode
• VFQFPN68, 8x8 mm package