Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16th Brick)
Performance Curves
3.3V Version (continued)
Figure 14. 3.3V Startup Characteristic at VIN = 48Vdc,
Figure 15. 3.3V Output Ripple at VIN = 48Vdc, IO =
IO = Full Load, TA = 25°C, CO = 0.
Full Load, TA = 25°C.
ALD18F48 Current vs. Temperature
18
16
14
12
10
8
0LFM
6
10 0 L F M
200LFM
4
300LFM
2
400LFM
0
25
40
55
70
85
Temperature (°C)
Figure 16. 3.3V Output current vs. ambient temperature
curves at VIN = 48Vdc.
Figure 17. 3.3V Transient Response 50% to 75% step at
VIN = 48Vdc, TA = 25°C, di/dt = 0.1A/µs, CO = 0.
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SHEET 10 OF 20
ASTEC [ Astec America, Inc ]
