Intel SC5299WS User Manual

ground return. The current in any remote sense line is less than 5 mA to prevent voltage 
sensing errors. The power supply operates within specification over the full range of voltage 
drops from the power supply’s output connector to the remote sense points. 

2.2.4.13 

Standby Output 

The 5VSB output is present when an AC input greater than the power supply turn on voltage is 
applied. 

2.2.4.14 

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 5V, 
12V1, 12V2, –12V and 5VSB outputs are measured at the power supply connectors referenced 
to ReturnS. The +3.3V is measured at its remote sense signal (3.3VS) located at the signal 
connector. 

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

 

- 12V 

- 5%/+9% 

-11.40 

-12.00 

-13.08 

V

rms

 

+ 5VSB 

- 5%/+5% 

+4.75 

+5.00 

+5.25 

V

rms

 

 

2.2.4.15 

Dynamic Loading 

The output voltages are within limits specified for the step loading and capacitive loading 
specified in the following table. The load transient repetition rate is tested between 50Hz and 
5kHz at duty cycles ranging from 10%-90%. The 

   step load may occur anywhere between the 

MIN load and MAX load conditions. 

Output 

   Step Load Size (see 

note 2) 

Load Slew Rate 

Test Capacitive Load 

+3.3VDC 5.0A 0.25 A/

  sec 

250 

  F 

+5V 

4.0A 0.25 

A/

  sec 400 

  F