Data Sheet
January 11, 2012
20A Analog Micro DLynx
TM
: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 20A output current
Characteristic Curves
The following figures provide typical characteristics for the 20A Analog Micro DLynx
TM
at 3.3Vo and 25
o
C.
100
95
Vin=12V
22
18
NC
EFFICIENCY,
η
(%)
90
85
80
75
70
0
5
10
15
20
Vin=14V
Vin=4.5V
OUTPUT CURRENT, Io (A)
14
10
6
2
55
65
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
75
85
95
O
105
OUTPUT CURRENT, I
O
(A)
AMBIENT TEMPERATURE, T
A
C
Figure 25. Converter Efficiency versus Output Current.
Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
OUTPUT CURRENT,
OUTPUT VOLTAGE
V
O
(V) (50mV/div)
TIME, t (1μs/div)
I
O
(A) (10Adiv)
V
O
(V) (50mV/div)
TIME, t (20μs /div)
Figure 27. Typical output ripple and noise (C
O
=2x47μF
ceramic, V
IN
= 12V, I
o
= I
o,max,
).
Figure 28 Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout= 5x47uF
+1x330uF, CTune=2200pF & RTune=220 ohms
ON/OFF VOLTAGE
V
ON/OFF
(V) (5V/div)
INPUT VOLTAGE
OUTPUT VOLTAGE
OUTPUT VOLTAGE
TIME, t (2ms/div)
V
O
(V) (1V/div)
V
O
(V) (1V/div)
V
IN
(V) (5V/div)
TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (I
o
=
I
o,max
).
LINEAGE
POWER
Figure 30. Typical Start-up Using Input Voltage (V
IN
=
12V, I
o
= I
o,max
).
10
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
