Intel 315889-002 manual 2.6Stability - REQUIRED, 2.7Processor Power Sequencing - REQUIRED

Output Voltage Requirements

3.See Section 2.5 and Table 2-4, Impedance Measurement parameters and definitions

Table 2-4. Impedance ZLL Measurement Parameter Limits

Processor	ZLL 1	ZLLMax 2	ZLLMin 3	Fbreak	Notes
Dual-Core Intel® Xeon® Processor 5000 Series	1.25 mΩ	1.45 mΩ	1.05 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor 5000 Series MV	1.25 mΩ	1.511 mΩ	0.989 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor X5100 Series -Perf.	1.25 mΩ	1.583 mΩ	0.917 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor E5100 Series	1.25 mΩ	1.583 mΩ	0.92 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor L5100 Series LV	1.25 mΩ	1.917 mΩ	0.583 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor X5300 Series -Perf.	1.25 mΩ	1.49 mΩ	1.01 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor E5300 Series	1.25 mΩ	1.583 mΩ	0.917 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor L5300 Series- LV	1.25 mΩ	1.750 mΩ	0.750 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor X5200 Series -Perf.	1.25 mΩ	1.583 mΩ	0.917 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor E5200 Series	1.25 mΩ	1.673 mΩ	0.827 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor L5238 Series	1.25 mΩ	1.850 mΩ	0.650 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor X5482 Series - Perf.	1.25 mΩ	1.450 mΩ	1.050 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor X5400 Series - Perf.	1.25 mΩ	1.490 mΩ	1.010 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor E5400 Series	1.25 mΩ	1.544 mΩ	0.956 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor L5400 Series	1.25 mΩ	1.750 mΩ	0.750 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor X7300 Series - Perf	1.25 mΩ	1.481 mΩ	1.019 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor E7300 Series	1.25 mΩ	1.583 mΩ	0.917 mΩ	2.0 MHz
Dual-Core Intel® Xeon® Processor 7200 Series	1.25 mΩ	1.583 mΩ	0.917 mΩ	2.0 MHz
Quad-Core Intel® Xeon® processor L7300 Series	1.25 mΩ	1.750 mΩ	0.750 mΩ	2.0 MHz

Notes:

1.ZLL is the target impedance for each processor and Z(f) value coincides with it’s Load Line slope.

2.ZLLMAX is the max allowed ZLL tolerance, which still fits within the VccMax and VccMin Load Line limits listed in Table 2-3; ZLLMAX is specific for each processor due to a specific combination of its Load Line value and IccMax.

3.ZLLMIN is the min allowed ZLL tolerance, which still fits within the VccMax and VccMin Load Line limits listed in Table 2-3; ZLLMIN is specific for each processor due to a specific combination of its Load Line value and IccMax.

2.6Stability - REQUIRED

The VRM/EVRD needs to be unconditionally stable under all specified output voltage ranges, current transients of any duty cycle, and repetition rates of up to 2 MHz. The VRM/EVRD should also be stable under a no load condition.

2.7Processor Power Sequencing - REQUIRED

The VRM/EVRD must support platforms with defined power-up sequences. Figure 2-4shows a timing diagram of the power-on sequencing requirements. Timing parameters for the power-on sequence are listed in Table 2-5.

18 315889-002