SilverStone ST55GF Manual - Manual (Page 6)

3.4 Capacitive Loading
The power supply shall be stable and meet all requirements, except dynamic loading
requirements, with the following capacitive loading ranges.
Table 9 - Capacitive Loading Conditions
3.5 Timing Requirements
These are the timing requirements for the power assembly operation. The output voltages
must rise from 10% to within regulation limits (Tvout_rise) within 5 to 200mS. The +5V,
+3.3V and +12V output voltages should start to rise at about the same time. All outputs
must rise monotonically. The +5V output needs to be greater than the +3.3V output during
any point of the voltage rise. The +5V output must never be greater than the +3.3V output
by more than 2.25V. Each output voltage shall reach regulation within 50 mS (Tvout_on) of
each other during turn on of the power supply. Each output voltage shall fall out of
regulation within 400 mS (Tvout_off) of each other during turn off. Figure 1 and figure 2
show the turn On and turn Off timing requirement. In Figure 2, the timing is shown with
both AC and PSON# controlling the On/Off of the power supply.
Table 10 - Output Voltage Timing
Output MIN MAX Units
uF
uF
+5V
+12V
+12V
+5VSB
+3.3V
10
10
1
1
10 uF
12,000
12,000
11,000
350
350
uF
uF
mS
Item rin Units MIN MAX
Tvout_rise 5 70 mS
Tvout_on 50 mS
Tvout_off
Output voltage rise time from each main output.(+5Vsb < 70mS)
All main output must be within regulation of
each other within this time.
All main output must leave regulation within this time 400
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