The XDP™ XDPE15254D is a hyper transient phase controller. Core voltage is provided by a multiphase buck converter with up to 5 synchronous-rectified channels in parallel, while a second loop provides voltage for the I/O. The XDPE15254D phase configuration is flexible in how the phases are allocated to the 2 loops. Any phase can be assigned to either loop, and the phase firing order is fully programmable to offer the ultimate in phase configuration flexibility. Typically, configurations of 5+0, 4+1, 3+2 phases are supported.

Command and monitoring functions are controlled through the PMBus and SVID interfaces which supports dynamic voltage identification with 5 mV/step or 10 mV/step in Intel mode, output range up to 3.04 V, offset and trim resolution of 625 uV, and accuracy better than 0.5%.

The XDPE15254D controller utilizes digital technology to implement all control functions, providing the ultimate system solution in terms of flexibility and stability. Advanced control loop features, such as current mode control, variable frequency operation, Active Transient Response (ATR/FATR), fast DVID response, automatic phase shedding and, Pulse Frequency Modulation (PFM), enable optimal response to a highly dynamic load with fast di/dt load transients across a wide range of load current.

• Core power regulation for Intel VR14 based microprocessors
  • Servers
  • Workstations
  • High-end desktops