Characteristic curves – GE Industrial Solutions Austin MegaLynx SMT User Manual
Page 14
Data Sheet
September 10, 2013
Austin MegaLynx
TM
SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE
POWER
14
Characteristic Curves
The following figures provide typical characteristics for the ATH030A0X3-SR and –SRH (3.3V, 30A) at 25
o
C.
E
FFI
CIE
N
C
Y
, η
(%)
O
U
TPU
T
CUR
RE
NT
, Io
(A
)
OUTPUT CURRENT, I
O
(A)
AMBIENT TEMPERATURE, T
A
O
C
Figure 37. Converter Efficiency versus Output
Current.
Figure 40. Derating Output Current versus Ambient
Temperature and Airflow (ATH030A0X3-SRH).
O
U
T
P
UT
VO
LT
AG
E
V
O
(V) (
20
m
V
/di
v)
O
U
TPU
T
CUR
RE
NT,
Io
(A
)
TIME, t (1
μs/div)
AMBIENT TEMPERATURE, T
A
O
C
Figure 38. Typical output ripple and noise (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
Figure 41. Derating Output Current versus Ambient
Temperature and Airflow (ATH030A0X3-SR).
OU
TP
U
T
CU
RR
ENT,
O
U
TP
U
T
V
O
L
T
A
G
E
I
O
(A
)
(1
0A
/d
iv
)
V
O
(V
) (1
00
m
V
/d
iv
)
IN
PU
T
VO
LTA
G
E
O
U
TPU
T
VOLTAG
E
V
IN
(V
) (2
V
/d
iv
)
V
O
(V
) (
1V
/d
iv
)
TIME, t (10
μs /div)
TIME, t (2ms/div)
Figure 39. Transient Response to Dynamic Load
Change from 0% to 50% of full load with V
IN
=5V.
Figure 42. Typical Start-up Using Input Voltage (V
IN
=
V
IN,NOM
, I
o
= I
o,max
).
75
80
85
90
95
100
0
5
10
15
20
25
30
Vin = 4.5 V
Vin = 5.0 V
Vin = 5.5 V
0
5
10
15
20
25
30
35
35
45
55
65
75
85
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
2.5m/s
(500LFM)
0
5
10
15
20
25
30
35
35
45
55
65
75
85
0.5m/s
100LFM
1m/s
200LFM
1.5m/s
300LFM
2m/s
400LFM
2.5m/s
500LFM