Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16
th
Brick)
MODEL: ALD12/ 18/20/ 25 SERIES SHEET 13 OF 20
AUGUST 17, 2005 – REVISION C
Performance Curves
1.8V Version
Figure 26. 1.8V Startup Characteristic at V
IN
= 36Vdc,
I
O
= Full Load, T
A
= 25°C, C
O
= 0.
Figure 27. 1.8V Output Ripple at V
IN
= 48Vdc, I
O
=
Full Load, T
A
= 25°C.
Figure 29. 1.8V Transient Response 50% to 75% step at
V
IN
= 48Vdc, T
A
= 25°C, di/dt = 0.1A/µs, C
O
= 0.
Figure 28. 1.8V Output current vs. ambient temperature
curves at V
IN
= 48Vdc.
ALD25Y48 Current vs. Temperature
0
5
10
15
20
25
25 40 55 70 85
Temperature (° C )
Output C ur rent (Am ps
0 LFM
100 LFM
200 LFM
300 FLM
400 FLM