GE Industrial Solutions NaOS NXA025 SMT - Manual (Page 5)

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 5
Characteristic Curves
The following figures provide typical characteristics for the NXA025A0X –S at 25ºC.
80%
81%
82%
83%
84%
85%
86%
87%
88%
0 5 10 15 20 25
Vin=13.2V
Vin=10.8V
Vin=12.0V
88%
89%
90%
91%
92%
93%
94%
0 5 10 15 20 25
Vin=13.2V
Vin=10.8V
Vin=12.0V
E
FFI
CIE
N
CY
, η
(%)
OUTPUT CURRENT, I
O
(A)
E
FFI
CIE
N
CY
, η
(%)
OUTPUT CURRENT, I
O
(A)
Figure 1. Converter Efficiency versus Output Current
(Vout = 1.2Vdc). Figure 4. Converter Efficiency versus Output Current
(Vout = 2.5Vdc).
83%
84%
85%
86%
87%
88%
89%
90%
91%
0 5 10 15 20 25
Vin=13.2V
Vin=10.8V
Vin=12.0V
88%
89%
90%
91%
92%
93%
94%
95%
0 5 10 15 20 25
Vin=13.2V
Vin=10.8V
Vin=12.0V
EF
FI
CI
EN
C
Y
, η
(
%
)
OUTPUT CURRENT, I
O
(A)
EF
FI
CI
EN
C
Y
, η
(
%
)
OUTPUT CURRENT, I
O
(A)
Figure 2. Converter Efficiency versus Output Current
(Vout = 1.5Vdc). Figure 5. Converter Efficiency versus Output Current
(Vout = 3.3Vdc).
85%
86%
87%
88%
89%
90%
91%
92%
0 5 10 15 20 25
Vin=13.2V
Vin=10.8V
Vin=12.0V
89%
90%
91%
92%
93%
94%
95%
96%
97%
0 5 10 15 20 25
Vin=13.2V
Vin=10.8V
Vin=12.0V
EF
FI
CI
EN
C
Y
, η
(%)
OUTPUT CURRENT, I
O
(A)
EF
FI
CI
EN
C
Y
, η
(%)
OUTPUT CURRENT, I
O
(A)
Figure 3. Converter Efficiency versus Output Current
(Vout = 1.8Vdc).
Figure 6. Converter Efficiency versus Output Current
(Vout = 5.0Vdc).