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TFX12V Power Supply Design Guide
Thin Form Factor with 12 V Connector
Version 2.0
14
Table 4. Typical Power Distribution for 220 W TFX12V Configurations
Output
Minimum Current
(amps)
Rated Current
(amps)
Peak Current
(amps)
+12 VDC 1.0 15.0 17.0
+5 VDC 0.3 13.0 (Note)
+3.3 VDC 0.5 17.0 (Note)
-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 80 W
Peak currents may last up to 17 seconds with not more than one occurrence per minute
220W Cross Regulation
(5V rail + 3.3V rail vs. 12V)
0
10
20
30
40
50
60
70
80
90
0 50 100 150 200
12V power (watts)
5V + 3.3V power (watts)
Combined Power
(5V rail + 3.3V rail)
Figure 3. Cross Loading Graph for 220W Configuration