The UWQ series offers high output current (up to

17 Amps) in an industry standard “quarter brick”

package requiring no heat sink for most applica-

tions. The UWQ series delivers fixed DC output

voltages up to 204 Watts (12V @17A) for printed

circuit board mounting. Wide range inputs of 18

to 75 Volts DC (48 Volts nominal) are ideal for

datacom and telecom systems.

Advanced automated surface mount assembly

and planar magnetics deliver galvanic isolation

rated at 2250 Vdc for basic insulation. To power

digital systems, the outputs offer fast settling to

current steps and tolerance of higher capacitive

loads. Excellent ripple and noise specifications as-

sure compatibility to CPU’s, ASIC’s, programmable

logic and FPGA’s. No minimum load is required.

For systems needing controlled startup/shutdown,

an external remote On/Off control may use either

positive or negative polarity.

A wealth of self-protection features include

input undervoltage lockout and overtemperature

shutdown using an on-board temperature sensor;

overcurrent protection using the “hiccup” auto-

restart technique, provides indefinite short-circuit

protection, along with output OVP. The synchronous

rectifier topology offers high efficiency for minimal

heat generation and “no heat sink” operation. The

UWQ series is certified to safety standards UL/

EN/IEC/CSA 60950-1, 2nd edition. It meets RFI/

EMI conducted/radiated emission compliance to

EN55022, CISPR22 with an external filter.

PRODUCT OVERVIEW

APPLICATIONS



installations, wireless base stations







mated test fixtures



speech processing systems

FEATURES





0.46” open frame package



2250 Volt Basic isolation













60950-1, 2nd edition safety approvals



age, current limiting and thermal shutdown

　

F1

External

DC

Power

Source

Reference and

Error Amplifier

-Vout (4)

+Vout (8)

On/Off

Control

(2)

-Vin (3)

Open = On

+Vin (1)

polarity)

Controller

and Power

Barrier

Figure 1. Connection Diagram

Typical topology is shown. Murata Power Solutions recommends an external fuse.

UWQ-12/17-Q48 Series

Wide Input, Isolated DOSA Quarter Brick DC/DC Converters

MDC_UWQ-12/17-Q48 Series.A01.D7 Page 1 of 17

For full details go to

www.murata-ps.com/rohs

www.murata-ps.com

www.murata-ps.com/support

Typical unit

Typical unit