Owner's manual

GE
Data Sheet
12V Austin MicroLynx
TM
5A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 5A Output Current
May 6, 2013 ©2013 General Electric Company. All rights reserved. Page 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the Austin MicroLynx
TM
12V SMT modules at 25ºC.
OUTPUT CURRENT OUTPUTVOLTAGE I
O
(A) (2A/div) V
O
(V) (50mV/div)
OUTPUT VOLTAGE, INPUT VOLTAGE V
o
(V)
(2V/div) V
IN
(V) (5V/div)
TIME, t (10μs/div)
TIME, t (1 ms/div)
Figure 13. Transient Response to Dynamic Load Change
from 100% of 50% full load (Vo = 5.0 Vdc, Cext = 2x150 μF
Pol
y
mer Ca
p
acitors).
Figure 16. Typical Start-Up with application of Vin with (Vin
= 12Vdc, Vo = 3.3Vdc, Io = 5A).
OUTPUT VOLTAGE On/Off VOLTAGE
V
O
V) (2V/div) V
On/off
(V) (5V/div)
OUTPUT VOLTAGE On/Off VOLTAGE
V
O
V) (1V/div) V
On/off
(V) (2V/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 14. Typical Start-Up Using Remote On/Off
(Vin = 12Vdc, Vo = 3.3Vdc, Io = 5.0A).
Figure 17 T
y
pical Start-Up using Remote On/off with
Prebias (Vin = 12Vdc, Vo = 1.8Vdc, Io = 1A, Vbias =1.0 Vdc).
OUTPUT VOLTAGE On/Off VOLTAGE
V
O
V) (1V/div) V
On/off
(V) (2V/div)
OUTPUT CURRENT, I
O
(A) (5A/div)
TIME, t (2 ms/div) TIME, t (20ms/div)
F
igure 15. Typical Start-Up Using Remote On/Off with Low-
ESR external capacitors (7x150uF Polymer)
(Vin = 12Vdc
,
Vo = 3.3Vdc
,
Io = 5.0A
,
Co = 1050
μ
F).
Figure 18. Output short circuit Current (Vin = 12Vdc, Vo =
0.75Vdc).