Intel ATX12V Benutzerhandbuch
ATX12V Power Supply Design Guide
Version 2.0
15
Table 5. Typical Power Distribution for a 350 W ATX12V Configuration
Output
Min.
Current
(amps)
Max.
Current
(amps)
Peak
Current
(amps)
+12 V1DC
1 10
12
+12 V2DC
1 15
+5 VDC
0.3 21
+3.3 VDC
0.5 22
-12 VDC
0.0 0.3
+5 VSB
0.0
2.0
2.5
Note: Total combined output of 3.3 V and 5 V is
:
Peak currents may last up to 17 seconds with not more than one occurrence per minute
12V1DC and 12V2DC should have separate current limit circuits to meet 240VA safety requirements.
12V1DC and 12V2DC should have separate current limit circuits to meet 240VA safety requirements.
350W Cross Regulation
(5V rail + 3.3V rail vs. 12V1 +12V2)
0
20
40
60
80
100
120
140
0
50
100
150
200
250
300
350
12V power (watts)
5V +
3.
3V p
o
w
e
r
(w
a
tt
s
)
Combined Power
(5V rail + 3.3V rail)
(5V rail + 3.3V rail)
Figure 3. Cross Loading Graph for 350W Configuration