Data Sheet
June 3, 2009
Austin MegaLynx
TM
: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current
6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current
Characteristic Curves
The following figures provide typical characteristics for the ATS025A0X (3.3V, 25A) at 25
o
C.
99%
96%
93%
30
25
20
0.5m/s (100 LFM )
15
1.0m/s (200 LFM )
10
1.5m/s (300 LFM )
5
2.0m/s (400 LFM )
0
20
30
40
50
60
70
O
90%
87%
84%
81%
V
IN
= 6.0V
V
IN
= 1
2.0V
78%
V
IN
=1
4.0V
75%
0
5
10
15
20
25
OUTPUT CURRENT, Io (A)
EFFICIENCY,
η
(%)
80
90
OUTPUT CURRENT, I
O
(A)
AMBIENT TEMPERATURE, T
A
C
Figure 13. Converter Efficiency versus Output
Current.
Figure 16. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUTPUT VOLTAGE
On/Off VOLTAGE
OUTPUT VOLTAGE
V
O
(V) (20mV/div)
V
On/off
(V) (5V/div)
V
O
(V) (1V/div)
TIME, t (1μs/div)
TIME, t (2ms/div)
Figure 14. Typical output ripple and noise (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
Figure 17. Typical Start-up Using Remote On/Off (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
OUTPUT VOLTAGE
INPUT VOLTAGE
OUTPUT CURRENT, OUTPUT VOLTAGE
V
O
(V) (100mV/div)
I
O
(A) (10A/div)
V
IN
(V) (5V/div)
V
O
(V) (1V/div)
TIME, t (5μs /div)
TIME, t (2ms/div)
Figure 15. Transient Response to Dynamic Load
Change from 0% to 50% to 0% of full load.
Figure 18. Typical Start-up Using Input Voltage (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
LINEAGE
POWER
8
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
