Data Sheet
March 7, 2012
NQR010A0X4: Non-Isolated DC-DC Power Modules
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current
LINEAGE POWER 9
Characteristic Curves (continued)
The following figures provide typical characteristics for the NQR010 module at 2.5Vout and at 25ºC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
0246810
Vin = 4.5V Vin = 14VVin = 12V
OUTPUT CURRENT, Io (A)
3
4
5
6
7
8
9
10
11
25 35 45 55 65 75 85
2m/s
400LFM
NC
1.5m/s
(300LFM)
1m/s
(200LFM)
0.5m/s
(100LFM)
OUTPUT CURRENT, I
O
(A) AMBIENT TEMPERATURE, T
A
O
C
Figure 19. Converter Efficiency versus Output Current.
Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
V
O
(V) (20mV/div)
,
I
O
(A) (5Adiv) V
O
(V) (500mV/div)
TIME, t (1μs/div) TIME, t (100μs /div)
Figure 21. Typical output ripple and noise (V
IN = 12V, Io
= I
o,max).
Figure 22. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with V
IN
=12V.
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
O
(V) (1V/div) V
ON/OFF
(V) (5V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
V
O
(V) (1V/div) V
IN
(V) (5V/div)
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 24. Typical Start-up Using Input Voltage (V
IN =
12V, I
o = Io,max).
