GE Industrial Solutions NaOS NXA025 SMT - Manual (Page 6)

Data Sheet
October 5, 2009 Naos TM NXA025 SMT Non-isolated Power Modules:
10 – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A output current
LINEAGE POWER 6
Characteristic Curves (continued)
The following figures provide typical characteristics for the NXA025A0X –S at 25ºC.
O
U
T
P
U
T
VOLTAGE
V
O
(V)
(20mV
/di
v)
TIME, t (1 μs/div)
OUT
P
UT
C
U
R
R
E
N
T
,
O
U
T
P
UT
VO
LT
AG
E
I O
(A
) (5A
/d
iv
)
V
O
(V
) (
50mV
/di
v)
TIME, t (5 μs/div)
Figure 7. Typical Output Ripple and Noise (Vin = 12V
dc, Vo = 3.3 Vdc, Cout = 2x 0.47uF ceramic capacitor). Figure 10. Transient Response to Dynamic Load
Change from 100% to 50% of full load (Vo = 3.3Vdc).
O
U
TP
U
T
VOLTAGE
V
O
(V
) (2
0m
V
/d
iv)
TIME, t (1 μs/div) O
U
TPU
T
VOLTAGE,
IN
PU
T V
O
LTA
G
E
V
o
(V
) (1
V
/di
v)
V
IN
(V
) (2
V
/d
iv
)
TIME, t (0.5ms/div)
Figure 8. Typical Output Ripple and Noise (Vin = 12V
dc, Vo = 1.2Vdc, Cout = 2x 0.47uF ceramic capacitor). Figure 11. Typical Start-Up with application of Vin (Vo
= 3.3Vdc).
O
U
TP
U
T
CU
RR
E
N
T
O
U
TP
U
T
VO
LTA
G
E
I O
(A
) (5
A
/di
v)
V
O
(V
) (5
0m
V
/d
iv
)
TIME, t (5 μs/div) OU
TPU
T
V
O
LTAGE
O
n/O
ff VO
LTA
G
E
V
O
V)
(1
V
/d
iv)
V On
/o
ff
(V
) (
2V
/d
iv
)
TIME, t (0.5ms/div)
Figure 9. Transient Response to Dynamic Load
Change from 50% to 100% of full load (Vo = 3.3Vdc). Figure 12. Typical Start-Up Using Enable (Vo =
3.3Vdc).