108988358 Lineage Power, 108988358 Datasheet - Page 10

• Manufacturer Part Number: 108988358
• Description: Module DC-DC 1-OUT 0.75V to 3.63V 6A 6-Pin SMT T/R
• Manufacturer: Lineage Power
• Type: Non-Inverting|Inverting|Step Up|Step Downr

Specifications of 108988358

• Package: 6SMT
• Output Current: 6 A
• Output Voltage: 0.75 to 3.63 V
• Input Voltage: 2.4 to 5.5 V
• Number Of Outputs: 1
• Switching Regulator: Yes

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
(+)
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.
Efficiency
TO OSCILLOSCOPE
NOTE: Measure input reflected ripple current with a simulated
R
R
NOTE: All voltage measurements to be taken at the module
distribution
distribution
POWER
source inductance (L
possible battery impedance. Measure current as shown
above.
COPPER STRIP
1uF .
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
contact
contact
η =
@ 20°C 100kHz
E.S.R.<0.1Ω
C
Electrolytic
S
GROUND PLANE
1000μF
L
1μH
TEST
V
10uF
IN
V
V
V
COM
TEST
IN
IN
O
(+)
. I
. I
) of 1μH. Capacitor C
O
IN
SCOPE
COM
V
O
Tantalum
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 6A output current
2x100μF
C
V
x 100 %
IN
O
RESISTIVE
LOAD
CURRENT PROBE
R
R
S
contact
contact
offsets
V
COM
IN
Austin MicroLynx
(+)
R
R
distribution
distribution
R
LOAD
Design Considerations
Input Filtering
The Austin MicroLynx
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.
To minimize input voltage ripple, low-ESR polymer
and ceramic capacitors are recommended at the input
of the module. Figure 26 shows the input ripple
voltage (mVp-p) for various outputs with 1x150 µF
polymer capacitors (Panasonic p/n: EEFUE0J151R,
Sanyo p/n: 6TPE150M) in parallel with 1 x 47 µF
ceramic capacitor (Panasonic p/n: ECJ-5YB0J476M,
Taiyo- Yuden p/n: CEJMK432BJ476MMT) at full load.
Figure 27 shows the input ripple with 2x150 µF
polymer capacitors in parallel with 2 x 47 µF ceramic
capacitor at full load.
Figure 26. Input ripple voltage for various output
with 1x150 µF polymer and 1x47 µF ceramic
capacitors at the input (80% of Io,max).
Figure 27. Input ripple voltage for various output
with 2x150 µF polymer and 2x47 µF ceramic
capacitors at the input (80% of Io,max).
TM
120
100
120
100
II SMT Non-isolated Power Modules:
80
60
40
20
80
60
40
20
0
0
0
0
Vin = 3.3V
Vin = 5.0V
Vin = 3.3V
Vin = 5.0V
TM
Output Voltage (Vdc)
Output Voltage (Vdc)
1
1
II SMT module should be
2
2
3
3
10
4
4