108982661 Lineage Power, 108982661 Datasheet - Page 15

• Manufacturer Part Number: 108982661
• Description: Module DC-DC 1-OUT 0.75V to 5.5V 16A 6-Pin SMT T/R
• Manufacturer: Lineage Power
• Type: Step Downr

Specifications of 108982661

• Package: 6SMT
• Output Current: 16 A
• Output Voltage: 0.75 to 5.5 V
• Input Voltage: 12 V
• Number Of Outputs: 1
• Switching Regulator: Yes

Data Sheet
October 1, 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
33. Note that the airflow is parallel to the short axis of the
module as shown in figure 32. The derating data applies
to airflow in either direction of the module’s short axis.
Figure 32. T ref Temperature measurement location.
The thermal reference point, T
specifications is shown in Figure 32. 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
Air Flow
ref
used in the
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current
Bottom View
Austin SuperLynx
Top View
T
ref
o
C.
Figure 33. Thermal Test Set-up.
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 temperature (T
airflow conditions ranging from natural convection and
up to 2m/s (400 ft./min) are shown in the
Characteristics Curves section.
Wind T unnel
TM
12V SMT Non-isolated Power Modules:
PWBs
flow
Air
(0.235)
x
5.97_
(3.0)
76.2_
25.4_
(1.0)
Probe Loc ation
for measuring
airflow and
ambient
temperature
Power Module
A
) for
15