AN 910: Intel Agilex® 7 Power Distribution Network Design Guidelines

ID 683393
Date 9/29/2023
Document Table of Contents

3.2. FPGA Core Fabric VCC Voltage Regulator Selection

Intel® recommends you to use the industry standard common footprints for power stages. This provides you the flexibility to choose between different vendors during the validation phases. This also allows you to choose the vendor that best fit your PCB performance and cost targets without impacting the program schedule. The vendors that offer power stages for core in the industry standard common footprints are:

  • MPS
  • Infineon
  • Fairchild
  • TI
  • Intersil
  • ADI

The following controllers have been validated for operation and communication with the Intel Agilex® 7 Power Management Controller Tool and added to the existing list of supported controllers and power stages.

The recommended VCC core voltage regulators in Table 17 are available in the Intel® Quartus® Prime software for your selection. Intel® has already qualified these voltage regulators for the VID application. The PMBus communication is already validated by Intel® .

Table 17.  List of Supported Controllers and Power Stages
Vendor Controller Power Stage Number of Phase
MPS MPS2975/2972 MP86956A (60A) 5
Intersil/Renesas ISL68236 ISL99227 (60A) 5
ADI LTC3888-1 LTC7051 (60A) 4

Validated VR controllers from the Intel® Stratix® 10 device are still supported too. For more details, refer to the Intel® Stratix® 10 Power Management User Guide.

The following power design is being tested on internal boards (development kits). Hence, Intel® recommends you to follow this VCC core voltage regulator diagram as a reference.

Figure 7. VCC/VCCP Core Voltage Regulator Design Implemented on the Intel Agilex® 7 AGF014 2486A FPGA Development Kits