Technical Reference Notes
APC18T04 Series
Performance Curves
Efficiency vs. Output Current, 0.75Vout
95%
90%
85%
80%
75%
70%
65%
60%
Vin = 3.0Vdc
Vin = 3.3Vdc
Vin = 5.5Vdc
55%
0
3
6
9
12
15
18
Output Current [A]
Figure 4. Efficiency vs. Load Current at ambient
temperature, TA = 25°C.
Pow er Dissipation vs. Output Current, 0.75Vout
5
4
3
2
Vin = 3.0Vdc
1
Vin = 3.3Vdc
Vin = 5.5Vdc
0
0
3
6
9
12
15
18
Output Current [A]
Figure 5. Power Dissipation vs. Load Current at ambient
temperature, TA = 25°C.
Efficiency vs. Output Current, 2.5Vout
95%
90%
85%
80%
75%
70%
65%
60%
Vin = 3.0Vdc
Vin = 3.3Vdc
Vin = 5.5Vdc
55%
0
3
6
9
12
15
18
Output Current [A]
Figure 6. Efficiency vs. Load Current at ambient
temperature, TA = 25°C.
Pow er Dissipation vs. Output Current, 2.5Vout
5
4
3
2
Vin = 3.0Vdc
1
Vin = 3.3Vdc
Vin = 5.5Vdc
0
0
3
6
9
12
15
18
Output Current [A]
Figure 7. Power Dissipation vs. Load Current at ambient
temperature, TA = 25°C
MODEL: APC18T04 SERIES
JULY 27, 2005 - REVISION A
SHEET 7 OF 13