Table 85. Voltage Regulation Limits; Table 86. Transient Load Requirements; Table 87. Capacitive Loading Conditions - Intel P4000IP Series Technical Product Specification

System Power Sub-system
2.4.2.9 DC/DC Converters Voltage Regulation
The DC/DC converters‟ output voltages stay within the following voltage limits when operating
at steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise
specified in Table 95. The 3.3V and 5V outputs are measured at the remote sense point, all
other voltages measured at the output harness connectors.
Converter output
+ 3.3VDC
+ 5VDC
5Vstby
2.4.2.10 DC/DC Converters Dynamic Loading
The output voltages remains within limits specified in table above for the step loading and
capacitive loading specified in Table 93 below. The load transient repetition rate is only a test
specification. The  step load may occur anywhere within the MIN load to the MAX load shown
in Tables 93 and 94.
Output
+ 3.3VDC
+ 5VDC
+5Vsb
2.4.2.11 DC/DC Converter Capacitive Loading
The DC/DC converters is stable and meet all requirements with the following capacitive loading
ranges.Minimum capacitive loading applies to static load only.
+3.3VDC
+5VDC
5Vstby
2.4.2.12 DC/DC Converters Closed Loop stability
Each DC/DC converter is unconditionally stable under all line/load/transient load conditions
including capacitive load ranges specified in Section 2.4.2.11. A minimum of: 45 degrees
phase margin and -10dB-gain margin is required. The PDB provides proof of the unit‟s
closed-loop stability with local sensing through the submission of Bode plots. Closed-loop
stability must be ensured at the maximum and minimum loads as applicable.
Revision 1.0
Intel® Server System P4000IP and Intel® Workstation System P4000CR Family TPS

Table 85. Voltage Regulation Limits

Tolerance
-4%/+5%
-4%/+5%
-4%/+5%

Table 86. Transient Load Requirements

Max  Step Load Size
5A
5A
0.5A

Table 87. Capacitive Loading Conditions

Converter output Min
250
400
20
Intel order number G38159-001
Min Nom
+3.20 +3.30
+4.80 +5.00
+4.80 +5.00
Max Load Slew Rate
0.25 A/s
0.25 A/s
0.25A/s
Max
F
6800
F
4700
F
350
Max Units
+3.46 VDC
+5.25 VDC
+5.25 VDC
Test capacitive Load
250 F
400 F
20 F
Units
73