Technical Product Specification

Power Sub-System Intel® Server System SR1695WB TPS
Revision 1.4
Intel order number: E92079-005
18
3.5 DC output voltages
3.5.1 Output rating
Each DC output shall be capable of supplying the output current shown in Table 20.
Table 20. Output rating
Output Min Max
+12V 2A 37A
+5VSB 0 3A
3.5.2 Remote Sensing (+12VRS)
The power supply shall have remote sense (ReturnS) to compensate for output ground
drops for output voltages: +12V. The power supply system output shall have remote sense
(12VRS) to compensate for drops in the system for the +12V output. The remote sense input
impedance to the power supply shall be greater than 200ohms on +12VRS. Remote sense
shall be able to compensate for a minimum of 400mV drop on the +12V output. The current
in any remote sense line shall be less than 5mA to minimum voltage sensing errors.
3.5.3 No load operation
The power supply shall meet all requirements except for the transient loading requirements
when operated at no load on all outputs.
3.5.4 Regulation, ripple and noise
The power supply shall meet the regulation, ripple and noise limit under all operating
conditions (AC/DC line, transient loading, output loading). The regulation of Table 21Table
20 shall be measured at the output connector of the power supply, subject to the cross
loading condition in Table 21.
Table 21. Output voltage regulation
Output Voltage Limits(Vdc)
Output Minimum Nominal Maximum REG
+12V 11.64V 12V 12.36V +/-3%
+5VSB 4.8V 5V 5.2V +/-4%
3.5.5 Ripple and noise
Ripple and noise shall be measured with 0.1uF of ceramic capacitance and 10uF of tantalum
capacitance on each of the power supply output connector terminal. The ripple and noise
shall be met over all load ranges and AC/DC line voltages with 1 to 2 power supplies in
parallel operation. The output noise requirements shall apply over a 0Hz to 20MHz
bandwidth. Table 22 the ripple and noise.
Table 22. Ripple and Noise
Output +12V 5VSB
Maximum ripple/noise 150mVp-p 50mVp-p