CC109101276 Lineage Power, CC109101276 Datasheet - Page 10

• Manufacturer Part Number: CC109101276
• Description: Module DC-DC 1-OUT 0.75V to 5.5V 3A 5-Pin SMT T/R
• Manufacturer: Lineage Power

Data Sheet
October 2, 2009
Test Configurations
Figure 23. Input Reflected Ripple Current Test
Setup.
Figure 24. Output Ripple and Noise Test Setup.
Figure 25. Output Voltage and Efficiency Test
Setup.
LINEAGE
NOTE: All voltage measurements to be taken at the module
V
COM
O
Efficiency
(+)
TO OSCILLOSCOPE
NOTE: Measure input reflected ripple current with a simulated
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
R
R
NOTE: All voltage measurements to be taken at the module
distribution
distribution
source inductance (L
possible battery impedance. Measure current as shown
above.
POWER
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
R
R
COPPER STRIP
1uF .
contact
contact
η =
@ 20°C 100kHz
E.S.R.<0.1Ω
C
Electrolytic
S
1000μF
L
1μH
GROUND PLANE
TEST
V
IN
V
V
V
COM
TEST
10uF
IN
O
IN
(+)
. I
. I
) of 1μH. Capacitor C
O
IN
COM
SCOPE
V
O
Tantalum
2x100μF
V
C
x 100 %
O
IN
8.3 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 3A output current
CURRENT PROBE
RESISTIVE
LOAD
R
R
S
contact
contact
offsets
V
COM
IN
(+)
Austin MiniLynx
R
R
distribution
distribution
R
LOAD
Design Considerations
Input Filtering
The Austin MiniLynx
connected to a low-impedance source. A highly
inductive source can affect the stability of the module.
An input capacitance must be placed directly adjacent
to the input pin of the module, to minimize input ripple
voltage and ensure module stability in the presence of
inductive traces that supply input voltage to the
module.
In a typical application, a 22 µF low-ESR ceramic
capacitors will be sufficient to provide adequate ripple
voltage at the input of the module. To further
minimize ripple voltage at the input, additional
ceramic capacitors are recommended at the input of
the module. Figure 26 shows input ripple voltage
(mVp-p) for various outputs with 10µF and with a
22µF ceramic capacitor at full load.
Figure 26. Input ripple voltage for various outputs
with a 10 µF or a 22 µF ceramic capacitor at the
input (full-load).
TM
350
300
250
200
150
100
50
12V SMT Non-isolated Power Modules:
0
0.5
1
1.5
1 x 10uF
1 x 22uF
2
TM
2.5
12V SMT module should be
3
3.5
4
4.5
5
10
5.5