Intel Xeon - VR down Recommendations; VRM VID Routing; Simplified VRD Circuit Example

Design Guide 167
Platform Power Delivery Guidelines
12.2.6 VR Down Recommendations
Figure 12-4 is a simplified block diagram of a four-phase, interleaved VRD implementation.
Figure 12-3. VRM VID Routing
Power
Supply
Voltage Regulator
Module 1
Processor 0
Voltage Regulator
Module 2
Processor 1
VIDx[4:0]
OUTEN
Output Enable Logic
Figure 12-4. Simplified VRD Circuit Example
Driver
A
Driver
B
Driver
C
Driver
D
Controller
VID
PWRGD
OUTEN
clks
12V
Vcc