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 ATH030A0X (0.8V, 30A) at 25 C.
92%
89%
86%
35
30
o
OUTPUT CURRENT, Io (A)
EFFICIENCY,
η
(%)
25
0.5m/s (100 LFM )
20
1.0m/s (200 LFM )
15
1.5m/s (300 LFM )
10
2.0m/s (400 LFM )
5
20
30
40
50
60
70
O
83%
80%
77%
74%
V
IN
= 4.5V
V
IN
= 5.0V
71%
V
IN
=5.5V
68%
0
6
12
18
24
30
80
90
OUTPUT CURRENT, I
O
(A)
AMBIENT TEMPERATURE, T
A
C
Figure 19. Converter Efficiency versus Output
Current.
Figure 22. Derating Output Current versus Local
Ambient Temperature and Airflow.
On/Off VOLTAGE OUTPUT VOLTAGE
V
On/off
(V) (2V/div) V
O
(V) (0.5V/div)
OUTPUT VOLTAGE
V
O
(V) (20mV/div)
TIME, t (1μs/div)
TIME, t (2ms/div)
Figure 20. Typical output ripple and noise (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 23. Typical Start-up Using Remote On/Off (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
OUTPUT VOLTAGE
INPUT VOLTAGE
V
O
(V) (0.5V/div)
V
IN
(V) (2V/div)
I
O
(A) (10A/div)
V
O
(V) (100mV/div)
TIME, t (10μs /div)
TIME, t (2ms/div)
Figure 21. Transient Response to Dynamic Load
Change from 0% to 50% to 0% of full load.
Figure 24. Typical Start-up Using Input Voltage (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
LINEAGE
POWER
9
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
