Technical Product Specification

Power Sub-System Intel
®
Server System SC5650BCDP TPS
Intel order number: E80367-002 Revision 1.5
22
3.1.5.6 Voltage Regulation
The power supply output voltages are within the following voltage limits when operating at
steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise.
All outputs are measured with reference to the return remote sense signal (ReturnS). The
+12V3, +12V4, –12V and 5VSB outputs are measured at the power supply connectors
referenced to ReturnS. The +3.3V, +5V, +12V1, and +12V2 are measured at the remote sense
signal located at the signal connector.
Table 19. Voltage Regulation Limits
Parameter Tolerance MIN NOM MAX Units
+ 3.3V - 5% / +5% +3.14 +3.30 +3.46 V
rms
+ 5V - 5% / +5% +4.75 +5.00 +5.25 V
rms
+ 12V1 - 5% / +5% +11.40 +12.00 +12.60 V
rms
+ 12V2 - 5% / +5% +11.40 +12.00 +12.60 V
rms
+12V3 - 5% / +5% +11.40 +12.00 +12.60 V
rms
+12V4 - 5% / +5% +11.40 +12.00 +12.60 V
rms
- 12V - 5% / +9% -11.40 -12.00 -13.08 V
rms
+ 5VSB - 5% / +5% +4.75 +5.00 +5.25 V
rms
3.1.5.7 Dynamic Loading
The output voltages are within the limits specified for the step loading and capacitive loading
requirements specified in the following table. The load transient repetition rate is tested between
50Hz and 5 kHz at duty cycles ranging from 10%-90%. The load transient repetition rate is only
a test specification. The Δ step load may occur anywhere within the MIN load and MAX load
conditions.
Table 20. Transient Load Requirements
Output Δ Step Load Size 1, 2 Load Slew Rate Test Capacitive Load
+3.3V 7.0A
0.25 A/μsec 4700 μF
+5V 7.0A
0.25 A/μsec 1000 μF
+12V 25A
0.25 A/μsec 2700 μF
+5VSB 0.5A
0.25 A/μsec 20 μF