CC109135984 Lineage Power, CC109135984 Datasheet - Page 15

• Manufacturer Part Number: CC109135984
• Description: Module DC-DC 1-OUT 0.75V to 2V 20A 7-Pin SMT
• Manufacturer: Lineage Power
• Type: Step Downr

Specifications of CC109135984

• Package: 7SMT
• Output Current: 20 A
• Output Voltage: 0.75 to 2 V
• Input Voltage: 2.4 to 3.63 V
• Number Of Outputs: 1
• Switching Regulator: Yes

Data Sheet
October 2, 2009
Thermal Considerations
Power modules operate in a variety of thermal
environments; however, sufficient cooling should always
be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of the
module will result in an increase in reliability. The thermal
data presented here is based on physical measurements
taken in a wind tunnel. The test set-up is shown in Figure
25. Note that the airflow is parallel to the long axis of the
module as shown in figure 26. The derating data applies
to airflow in either direction of the module’s long axis.
Figure 25. T ref Temperature measurement location.
The thermal reference point, T
specifications is shown in Figure 25. For reliable
operation this temperature should not exceed 115
The output power of the module should not exceed the
rated power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame Board-
Mounted Power Modules” for a detailed discussion of
thermal aspects including maximum device temperatures.
LINEAGE
POWER
Bottom View
Top View
ref
2.4 – 3.63Vdc input; 0.75Vdc to 2.0Vdc Output; 20A output current
Air Flow
used in the
Austin SuperLynx II
T
ref
o
C.
Wind T unnel
Heat Transfer via Convection
Increased airflow over the module enhances the heat
transfer via convection. Thermal derating curves showing
the maximum output current that can be delivered at
different local ambient temperatures (T
conditions ranging from natural convection and up to
2m/s (400 ft./min) are shown in the Characteristics
Curves section.
Layout Considerations
Copper paths must not be routed beneath the power
module. For additional layout guide-lines, refer to the
FLTR100V10 application note.
Figure 26. Thermal Test Set-up.
PWBs
TM
SMT Non-isolated Power Modules:
flow
Air
(0.235)
x
5.97_
(3.0)
76.2_
25.4_
(1.0)
A
) for airflow
Probe Location
for measuring
airflow and
ambient
temperature
Power Module
15