The following figure shows the high-level power tree. Key details include:
- Main FPGA power is delivered by ISL68220 controller with ISL99360 power stages taking input power from the PCIe 12V edge connector
- There are two main power planes from the ISL68224, with one phase per plane.
- Each DSFP28 uses isolated power, which is delivered by a dedicated regulator
Figure 1. Card Power Tree
