Technical Reference Notes
AEO_ALO04/12/20/25x48 Series
(Single Output 8th Brick)
Electrical Specifications (continued)
OUTPUT SPECIFICATIONS
Parameter
Device
Symbol
Min
Typical
Max
Unit
Output Current-limit Inception
VO = 90% VO, NOM; TA = 25ºC
VIN = VIN, NOM
B (12V0)
A (5V0)
F (3V3)
G (2V5)
Y (1V8)
M (1V5)
K (1V2)
All
IO, OCP
5.0
16.0
23.5
23.5
27.0
27.0
27.0
-
-
-
-
-
-
-
-
-
-
7.8
A
23.9
30.0
Non-latching / auto-recovery
30.0
48.0
48.0
48.0
External Load Capacitance
IO = IO, MAX , resistive load
CEXT
10,000
1,500
µF
B (12V0)
-
Capacitor ESR
4
-
mΩ
%
Efficiency
B (12V)
A (5.0V)
F (3.3V)
G (2.5V)
Y (1.8V)
M (1.5V)
K (1.2V)
92.0
92.0
90.0
89.0
88.5
87.0
85.0
93.0
93.0
91.0
90.0
90.0
88.5
87.0
94.0
94.0
93.0
92.0
91.0
90.5
88.0
η
η
η
η
η
η
η
VIN = VIN, NOM; IO = IO, MAX
TA = 25ºC
Output Over Voltage Protection
Non-latching / autorecovery
B (12V)
A (5.0V)
F (3.3V)
G (2.5V)
Y (1.8V)
M (1.5V)
K (1.2V)
AEO
VO, OVP
13.8
5.80
3.80
2.90
2.10
1.75
1.38
110
110
-
14.4
6.00
4.00
3.00
2.30
1.85
1.50
-
15.0
6.20
4.30
3.20
2.50
2.38
1.80
120
120
17
V
Over Temperature Protection
Input to Output Turn-On Delay
°C
ALO
-
All
-
-
-
ms
V
IN = VIN, NOM
5V, 12V
-
-
20
IO = IO, MAX
Enable to Output Turn-On Delay
All
-
-
-
-
-
-
17
20
ms
ms
V
IN = VIN, NOM
IO = IO, MAX
Output Voltage Rise Time
10% to 90% of VO
VIN = VIN, NOM
All
5V
-
-
3
4
9
11
16
520
10
110
3
-
-
-
-
IO = IO, MAX
12V
All
All
9
Switching Frequency
Output Voltage Remote Sensing
FSW
-
380
450
-
kHz
%VO
%VO
%Vo
-
Output Voltage Trim Range6
Output Voltage Overshoot
All
All
90
-
-
0
MODEL: AEO_ALO04/12/20/25x48 SERIES
SHEET 4 OF 26
AUGUST 25, 2005 - REVISION G
ASTEC [ Astec America, Inc ]
