TFX12V Power Supply Design Guide
Thin Form Factor with
Version 2.0
115VAC input and 230VAC input, under the load conditions defined Table 8, and under the temperature and operating conditions defined in Section 3. The loading condition for testing efficiency shown in Table 7 represents a fully loaded system, a typical (50%) loaded system, and a light (20%) loaded system.
Table 7: Efficiency Vs Load
Loading
Required Minimum Efficiency
Recommended Minimum Efficiency
Full load
70%
75%
Typical load
70%
80%
Light load
60%
68%
Table 8. Loading Table for Efficiency Measurements
180W (loading shown in Amps)
Loading
+12V
+5V
+3.3V
+5Vsb
Full
11
4
5.8
0.3
1.0
Typical
7
3
4
0.1
1.0
Light
2
0.3 | 0.5 | 0.0 |
|
|
|
1.0
220W (loading shown in Amps)
Loading
+12V
+5V
+3.3V
+5Vsb
Full
13
5
9
0.3
1.0
Typical
8
3
5
0.1
1.0
Light
3
0.5
2.0
0.0
1.0
240W (loading shown in Amps)
Loading
+12V
+5V
+3.3V
+5Vsb
Full
14.5
7
7
0.2
1.0
Typical
7
4
5
0.1
1.0
Light
3.4
1.0
3.0
0.0
1.0
270W (loading shown in Amps)
Loading
+12V1
+12V2
+5V
+3.3V
+5Vsb
Full
4
11.5
9.4
9
0.2
1.0
Typical
2
5.5
4.5
4
0.1
1.0
Light
1
2.4
0.4
0.7
0.0
1.0
