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QBK025A0B1 Datasheet, PDF (1/16 Pages) Lineage Power Corporation – 36-55Vdc Input; 12Vdc Output Voltage; 25A Output Current | |||
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Data Sheet
March 27, 2008
QBK025A0B Series DC-DC Converter Power Modules:
36- 55Vdc Input, 12Vdc Output and 25A Output Current
RoHS Compliant
Features
 Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
 Compliant to RoHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
 Delivers up to 25A Output current
 High efficiency â 94% at 12V full load
 Industry standard Quarter brick footprint
57.9mm x 36.8mm x 10.6mm
Applications
 Distributed power architectures
 Servers and storage applications
 Optical and Access Network Equipment
 Enterprise Networks
Options
 Negative logic, Remote On/Off
 Active load sharing (Parallel Operation)
 Baseplate option (-H)
 Auto restart after fault shutdown
 Case ground pin
(2.28in x 1.45in x 0.42in)
 Low output ripple and noise
 Cost efficient open frame design
 Intermediate input voltage range
 Output overcurrent/voltage protection
 Over-temperature protection
 Single optimal regulated output
 Wide operating temperature range (-400C to 850C)
 Positive logic, Remote On/Off
 Complies with and is licensed for Basic Insulation
rating per EN60950-1
 CE mark meets 73/23/EEC and 93/68/EEC
directives§
 UL* 60950-1Recognized, CSAâ C22.2 No. 60950-1-
03 Certified, and VDEâ¡ 0805:2001-12 (EN60950-1)
Licensed
 ISO** 9001 and ISO 14001 certified manufacturing
facilities
Description
The QBK025A0B series of DC-DC converters are an expansion of a new generation of DC/DC power modules
designed to support 12Vdc intermediate bus applications where multiple low voltages are subsequently generated
using discrete/modular point of load (POL) converters. The QBK025A0B series provide up to 25A output current in
an industry standard quarter brick, which makes it an ideal choice for small space, high current and 12V
intermediate bus voltage applications. The converter incorporates synchronous rectification technology and
innovative packaging techniques to achieve efficiency reaching 94% at 12V full load. This leads to lower power
dissipations such that for many applications a heat sink is not required. The output is fully isolated from the input,
allowing versatile polarity configurations and grounding connections. Built-in filtering for both input and output
minimizes the need for external filtering.
* UL is a registered trademark of Underwriters Laboratories, Inc.
â CSA is a registered trademark of Canadian Standards Association.
â¡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
Document No: DS03-096 ver. 1.46
PDF name: qbus_qbk025a0b_ds.pdf
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