Data Sheet
December 6, 2010
Naos Raptor 3A: Non-isolated DC-DC Power Modules
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 3A output current
LINEAGE POWER 10
Characteristic Curves (continued)
The following figures provide typical characteristics for the Naos Raptor 3A module at 3.3Vout and at 25ºC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
0 0.5 1 1.5 2 2.5 3
Vin = 4.5V
Vin = 12V
Vin = 14V
OUTPUT CURRENT, Io (A)
1
2
3
4
25 35 45 55 65 75 8
NC
OUTPUT CURRENT, I
O
(A) AMBIENT TEMPERATURE, T
A
O
C
Figure 25. Converter Efficiency versus Output Current.
Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
V
O
(V) (10mV/div)
,
I
O
(A) (1Adiv) V
O
(V) (100mV/div)
TIME, t (1μs/div) TIME, t (100μs /div)
Figure 27. Typical output ripple and noise (V
IN = 12V, Io
= I
o,max).
Figure 28. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with V
IN
=12V.
ON/OFF VOLTAGE OUTPUT VOLTAGE
V
ON/OFF
(V) (5V/div) V
O
(V) (1V/div)
INPUT VOLTAGE OUTPUT VOLTAGE
V
IN
(V) (5V/div) V
O
(V) (1V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 30. Typical Start-up Using Input Voltage (V
IN =
12V, I
o = Io,max).
