Single Output UEP Models
www.murata-ps.com
Ultra-High Density, 2" x 1", 1.2-6 Amp,15-30 Watt DC/DC’s
FEATURES
Choice of 3 input ranges:
PRODUCT OVERVIEW
The UEP Series DC/DC Converters deliver the most
power/current (up to 30W/6Amps) from a 1" x 2"
10-18V, 18-36V, 36-75V
package. And because of their footprint compatibility,
OBSOLETE PRODUCT
they can be used as drop in replacements for their
Models Include
3.3V @ 4.5A or 6A
5V @ 3.5A or 6A
15V @ 1.2A
bigger brothers, the standard 2" x 2" and 1.6" x 2"
Last time buy: 3 March 2014
devices, commonly used in the industry.
Typical units
By combining a high-frequency (340kHz), high-
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12V @ 1.4A
efficiency (to 89%), synchronous-rectifier topology
Guaranteed efficiencies to 89%
with the newest components and time-tested, fully
automated, SMT-on-pcb construction, these UEP
Models are able to bring you 15-30W in the standard
2" x 1" package from which most competitors can
only get 5-10W. All UEP’s deliver their full output power
over ambient temperature ranges from –40°C to as
high as +70°C (model and input voltage dependent)
without heat sinks or supplemental forced-air cooling.
Devices derate to +100°C.
Output voltages are 3.3, 5, 12 or 15 Volts. Input
voltage ranges are 10-18V (“D12” models), 18-36V
(“D24” models) or 36-75V (“D48”) models. All models
feature input pi
15-30 Watts in 1" x 2" package
340kHz synchronous-rectifier topologies
–40 to +60/70°C ambient w/o derating
Fully isolated (1500Vdc); I/O protected
short-circuit protection. Standard features also include
on/off control and output-trim. All models are designed
to meet IEC950, UL1950 and EN60950 safety require-
ments for OPERATIONAL insulation. “D48” models
(36-75V inputs) are CE marked.
Trim and On/Off Control
Designed to meet UL1950/EN60950
certifications
CE mark (75VIN models)
UEP Series DC/DC’s are packaged in low-cost,
light-weight, diallyl phthalate (UL94V-0 rated) plastic
packages with standoffs. EMC compliance is achieved
via a low-noise design rather than through expensive
metal shielding.
filters, input undervoltage and overvoltage lockout,
input reverse-polarity protection, output overvoltage
protection, output current limiting, and continuous
+INPUT
(1)
+OUTPUT
(4)
SWITCH
CONTROL
➀
–OUTPUT
(5)
➀
–INPUT
(2)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
TRIM
(6)
UVLO & OVLO
COMPARATORS
ON/OFF
CONTROL
(3)
➀
3.3V and 5V-output models use the synchronous-rectifier configuration shown above.
12V and 15V-output models employ a standard, diode-rectification architecture.
Figure 1. Simplified Schematic
Typical topology is shown.
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