Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16th Brick)
Performance Curves
1.8V Version
Figure 26. 1.8V Startup Characteristic at VIN = 36Vdc,
Figure 27. 1.8V Output Ripple at VIN = 48Vdc, IO =
IO = Full Load, TA = 25°C, CO = 0.
Full Load, TA = 25°C.
ALD25Y48 Current vs. Temperature
25
20
15
10
5
0 LFM
100 LFM
200 LFM
300 FLM
400 FLM
0
25
40
55
Temperature (°C)
70
85
Figure 28. 1.8V Output current vs. ambient temperature
curves at VIN = 48Vdc.
Figure 29. 1.8V 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 13 OF 20
ASTEC [ Astec America, Inc ]
