Datasheet

Power Supply Specification Guidelines Intel® Server Board S2600CW Family TPS
128 Revision1.11
10.2.4.3 Voltage Regulation
The power supply 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.
These shall be measured at the output connectors.
Table 52. Voltage Regulation Limits
Parameter Tolerance Min Nom Max Units
+12V -5%/+5% +11.40 +12.00 +12.60 V
rms
+12V stby -5%/+5% +11.40 +12.00 +12.60 V
rms
10.2.4.4 Dynamic Loading
The output voltages remains within limits specified for the step loading and capacitive loading
specified in the table below. The load transient repetition rate is tested between 50Hz and
5kHz at duty cycles ranging from 10%-90%. The load transient repetition rate is only a test
specification. The  step load may occur anywhere within the minimum load to the maximum
load conditions.
Table 53. Transient Load Requirements
Output
 Step Load Size
(See note 2)
Load Slew Rate Test Capacitive Load
+12VSB 1.0A
0.25 A/sec 20 F
+12V 60% of max load
0.25 A/sec 2000 F
Note: For dynamic condition +12V min loading is 1A.
10.2.4.5 Capacitive Loading
The power supply is stable and meets all requirements with the following capacitive loading
ranges.
Table 54. Capacitive Loading Conditions
Output Min Max Units
+12VSB 20 3100
F
+12V 500 25000
F
10.2.4.6 Grounding
The output ground of the pins of the power supply provides the output power return path.
The output connector ground pins are connected to the safety ground (power supply
enclosure). This grounding is well designed to ensure passing the maximum allowed Common
Mode Noise levels.