Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16th Brick)
Performance Curves
2.5V Version (continued)
ALD20G48 Current vs. Temperature
20
15
10
5
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
0
25
40
55
70
85
Ambient Temperature (°C)
Figure 22. 2.5V Output current vs. ambient temperature
curves at VIN = 48Vdc.
Figure 23. 2.5V Transient Response 50% to 75% step at
VIN = 48Vdc, TA = 25°C, di/dt = 0.1A/µs, CO = 0.
1.8V Version
Efficiency vs. Output Current, TA=25°C
Power Dissipation vs. Output Current, TA=25°C
10
95%
90%
85%
80%
75%
70%
Vin = 36 Vdc
8
Vin = 48 Vdc
Vin = 75 Vdc
6
4
2
0
Vin = 36Vdc
65%
Vin = 48Vdc
60%
Vin = 75Vdc
55%
0
5
10
15
20
25
0
5
10
15
20
25
Output Current (Amps)
Output Current (Amps)
Figure 24. 1.8V Efficiency vs. output current at various
Figure 25. 1.8V Power Dissipation vs. load current at
input line conditions, TA = 25°C.
various input line conditions, TA = 25°C.
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SHEET 12 OF 20
ASTEC [ Astec America, Inc ]
