UDT020A0X3-SRZ Lineage Power, UDT020A0X3-SRZ Datasheet - Page 33

• Manufacturer Part Number: UDT020A0X3-SRZ
• Description: DC/DC Converters & Regulators 3-14.4Vin .6-5.5Vout 20A Neg SMT Digital
• Manufacturer: Lineage Power

Specifications of UDT020A0X3-SRZ

• Product: Non-Isolated / POL
• Input Voltage Range: 3 VDC to 14.4 VDC
• Input Voltage (nominal): 12 V
• Output Voltage (channel 1): 0.6 VDC to 5.5 VDC
• Output Current (channel 1): 20 A
• Output Voltage: 0.6 VDC to 5.5 VDC
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Preliminary Data Sheet
May 10, 2011
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 48. The preferred airflow direction
for the module is in Figure 49.
LINEAGE
Wind Tunnel
PWBs
POWER
Figure 48. Thermal Test Setup.
flow
Air
(0.50)
x
12.7_
(3.0)
76.2_
25.4_
(1.0)
3 – 14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A output current
20A Digital Micro DLynx
Probe Location
for measuring
airflow and
ambient
temperature
Power Module
The thermal reference points, T
specifications are also shown in Figure 49. For reliable
operation the temperatures at these points should not
exceed 120
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.
Figure 49. Preferred airflow direction and location
of hot-spot of the module (Tref).
TM
: Non-isolated DC-DC Power Modules
o
C. The output power of the module should
ref
used in the
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