www.murata-ps.com
Output (V)
3.3
5
12
DBQ/DVQ Series
420W Digital Fully Regulated Intermediate
DC-DC Bus Converter
Current (A)
60
60
35
Input (Vdc)
36-75
Typical units
FEATURES
Advanced Bus Converter industry standard
quarter-brick with digital PMBus interface
Optional standard five pin quarter-brick
High efficiency, 95.2% (typ)
Superior thermal performance
Fast dynamic response
± 2% Vout setting accuracy
2250Vdc input to output isolation voltage
(functional)
Optional baseplate (B option)
PMBus™ Revision 1.2 compliant
Voltage droop load sharing for parallel operation
Certified to UL/EN/IEC 60950-1, CAN/CSA-C22.2
No. 60950-1, 2nd Edition, safety approvals and
EN55022/CISPR22 standards
PRODUCT OVERVIEW
Murata Power Solutions is introducing the first in
a series of digitally controlled DC-DC converters
that are based on a 32-bit ARM processor. The DBQ
series provides a fully regulated, digitally controlled
DC output in a ¼-brick format that will support the
evolving Advanced Bus Converter (ABC) industry
standard footprint for isolated board mounted
power modules. The DBQ series supports advances
in power conversion technology including a digital
interface supporting the PMBus protocol for com-
munications to power modules.
The DBQ series also incorporates a “droop” load
sharing option that allows connecting two or more
units together in parallel for demanding power-
hungry applications or to provide redundancy in
high reliability applications. The converter also
offers high input to output isolation of 2250 VDC as
required for Power over Ethernet (PoE) applications.
The DBQ series is suitable for applications cov-
ering MicroTCA, servers and storage applications,
networking equipment, telecommunications equip-
ment, Power over Ethernet (PoE), fan trays, wireless
networks, wireless pre-amplifiers, and industrial
and test equipment, along with other applications
requiring a regulated 12V.
Power Management (PMBus Options)
Configurable soft-start/stop
Configurable output voltage (Vout) and voltage
margins (Margin low and Margin high)
Configurable protection limits for OVP, input over
voltage, input under voltage, over current, on/off,
and temperature.
Module Status monitor Vout, Iout, Vin, Temp,
Power good, and On/Off.
System status monitor (Vout, Iout, Vin and Temp
over time)
Applications
Distributed power architectures
Intermediate bus voltage applications
Servers and storage applications
Network equipment
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
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