Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16th Brick)
Performance Curves
1.5V Version
Efficiency vs. Output Current, TA=25°C
Power Dissipation vs. Output Current, TA=25°C
95%
90%
85%
80%
75%
70%
65%
60%
55%
10
Vin = 36Vdc
Vin = 48Vdc
Vin = 75Vdc
8
6
4
Vin = 36Vdc
Vin = 48Vdc
Vin = 75Vdc
2
0
0
5
10
15
20
25
0
5
10
15
20
25
Output Current [A]
Output Current [A]
Figure 30. 1.5V Efficiency vs. output current at various
Figure 31. 1.5V Power dissipation vs. output current at
input line conditions, TA = 25°C.
various input line conditions, TA = 25°C.
Figure 32. 1.5V Startup Characteristic at VIN = 48V, TA
Figure 33. 1.5V Output Ripple at VIN = 48Vdc, IO =
= 25°C.
Full Load, TA = 25°C.
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SHEET 14 OF 20