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 1.2Vo and 25
o
C.
95
90
Vin=3.3V
Vin=14V
Vin=12V
22
18
NC
EFFICIENCY,
η
(%)
80
75
70
65
60
55
50
0
5
10
OUTPUT CURRENT, Io (A)
85
14
10
6
1m/s
(200LFM)
0.5m/s
(100LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
15
20
2
55
65
75
85
95
O
105
OUTPUT CURRENT, I
O
(A)
AMBIENT TEMPERATURE, T
A
C
Figure 7. Converter Efficiency versus Output Current.
OUTPUT VOLTAGE
OUTPUT CURRENT,
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
V
O
(V) (20mV/div)
I
O
(A) (10Adiv)
OUTPUT VOLTAGE
V
O
(V) (20mV/div)
TIME, t (1μs/div)
TIME, t (20μs /div)
Figure 9. Typical output ripple and noise (C
O
=2x47μF
ceramic, V
IN
= 12V, I
o
= I
o,max,
).
Figure 10. Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout= 1x47uF
+5x330uF, CTune=10nF & RTune=178 ohms
ON/OFF VOLTAGE
V
ON/OFF
(V) (5V/div)
INPUT VOLTAGE
OUTPUT VOLTAGE
OUTPUT VOLTAGE
V
O
(V) (500mV/div)
TIME, t (2ms/div)
V
O
(V) (500mV/div)
V
IN
(V) (5V/div)
TIME, t (2ms/div)
Figure 1. Typical Start-up Using On/Off Voltage (I
o
=
I
o,max
).
Figure 12. Typical Start-up Using Input Voltage (V
IN
=
12V, I
o
= I
o,max
).
LINEAGE
POWER
7
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
