Intel SC5300BD2 Product Specification - Page 46

Intel® Server Chassis SC5300 5U Kit TPS, Chassis Power Subsystem, Revision 1.31, 3.3.8, DC/DC

Page 46 highlights

Intel® Server Chassis SC5300 5U Kit TPS Chassis Power Subsystem (5) Combined peak current on the total +12V rails shall not exceed 58A. (6) Peak current on the 12V4 rail shall be supported for a minimum of 500msec. (7) All rails from the power distribution board must meet the UL energy hazard requirements. 3.3.3.8 DC/DC Converters Loading The following table defines the power and current ratings of the three DC/DC converters located on the power distribution board, each powered from the +12V rail. The three converters must meet both static and dynamic voltage regulation requirements for the minimum and maximum loading conditions. 3.3V / 5V combined power limit is 140W max. Table 27. DC/DC Converters Load Ratings +12VDC Input DC/DC Converters +3.3V Converter +5V Converter -12V Converter MAX Load 24.0A 24.0A 0.5A MIN Static / Dynamic Load 0.5A 0.5A 0A Max Output Power, see note 1 3.3x24=79.2W 5x24=120W 0.5x12=6W Notes: (1) The straight sum of the three max powers = 205.2W, but considering the 3.3/5V power limit, it may be 140W +6W = 146W max combined power. In reality, at max load, each output voltage is allowed to sag to Vmin, so the actual each max power will then be is: for 3.3V, 3.2Vx24A = 76.8W; for 5V, 4.8Vx24A=115.2W; and for -12V, 11.4Vx0.5A=5.7W. (2) All rails from the power distribution board must meet the UL energy hazard requirements. 3.3.3.9 Voltage Regulation The DC/DC converters' output voltages must stay within the following voltage limits when operating at steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise specified. All outputs are measured with reference to the return remote sense signal (ReturnS). The 3.3V output is measured at the 3.3 RS point, all other voltages are measured at the output harness connectors. Table 28. Voltage Regulation Limits Converter Output + 3.3VDC + 5VDC +12VDC (12V1/2/3/4) - 12VDC Tolerance - 3% / +5% - 4% / +5% -4%/ +5% - 5% / +9% MIN +3.20 +4.80 +11.52 -11.40 NOM +3.30 +5.00 +12.00 -12.00 MAX +3.465 +5.25 +12.60 -13.08 Units VDC VDC VDC VDC Revision 1.31 45

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Intel® Server Chassis SC5300 5U Kit TPS
Chassis Power Subsystem
Revision 1.31
45
(5)
Combined peak current on the total +12V rails shall not exceed 58A.
(6)
Peak current on the 12V4 rail shall be supported for a minimum of 500msec.
(7)
All rails from the power distribution board must meet the UL energy hazard requirements.
3.3.3.8
DC/DC Converters Loading
The following table defines the power and current ratings of the three DC/DC converters located
on the power distribution board, each powered from the +12V rail. The three converters must
meet both static and dynamic voltage regulation requirements for the minimum and maximum
loading conditions.
3.3V / 5V combined power limit is 140W max.
Table 27.
DC/DC Converters Load Ratings
+12VDC Input DC/DC Converters
+3.3V Converter
+5V Converter
-12V
Converter
MAX Load
24.0A
24.0A
0.5A
MIN Static / Dynamic Load
0.5A
0.5A
0A
Max Output Power, see note 1
3.3x24=79.2W
5x24=120W
0.5x12=6W
Notes
:
(1)
The straight sum of the three max powers = 205.2W, but considering the 3.3/5V power limit, it may be 140W +6W
= 146W max combined power. In reality, at max load, each output voltage is allowed to sag to Vmin, so the actual
each max power will then be is:
for 3.3V, 3.2Vx24A = 76.8W; for 5V, 4.8Vx24A=115.2W; and for -12V,
11.4Vx0.5A=5.7W.
(2)
All rails from the power distribution board must meet the UL energy hazard requirements.
3.3.3.9
Voltage Regulation
The DC/DC converters’ output voltages must stay within the following voltage limits when
operating at steady state and dynamic loading conditions. These limits include the peak-peak
ripple/noise specified. All outputs are measured with reference to the return remote sense signal
(ReturnS). The 3.3V output is measured at the 3.3 RS point, all other voltages are measured at
the output harness connectors.
Table 28.
Voltage Regulation Limits
Converter Output
Tolerance
MIN
NOM
MAX
Units
+ 3.3VDC
- 3% / +5%
+3.20
+3.30
+3.465
VDC
+ 5VDC
- 4% / +5%
+4.80
+5.00
+5.25
VDC
+12VDC (12V1/2/3/4)
-4%/ +5%
+11.52
+12.00
+12.60
VDC
- 12VDC
- 5% / +9%
-11.40
-12.00
-13.08
VDC