UST Models
www.murata-ps.com
3W, Single Output DC/DC Converters
PRODUCT OVERVIEW
FEATURES
Lowest cost! Highest reliability!
100% SMT-on-pcb, including magnetics
100% automatically assembled
Standard "DIP" package and pinouts
Fully isolated, 1000Vdc guaranteed
5, 12 or 15 Volt outputs
Choice of 3 wide-range inputs:
4.5-9 Volts
9-18 Volts
18-72 Volts
Rarely has a Series of low-power DC/DC converters been defined by both low cost and DATEL's
made-in-the-USA quality and reliability. Our new
UST Series of single-output DC/DC’s achieves this
best-of-both-worlds status by implementing a
proven circuit architecture (170-200kHz flyback
design) as a full, SMT-on-pcb assembly (including
surface-mount magnetics) that is truly 100% automatically assembled. Packaged in miniature 1.25"
x 0.8", DIP-like plastic packages (UL94V-0 rated)
and requiring no external components, UST Series
DC/DC’s bring true component-like convenience to
designers of today’s distributed power systems.
Output voltages are 5, 12 or 15 Volts. Input
voltage ranges are 4.5-9V ("D5" models), 9-18V
("D12" models) or an ultra-wide 18-72V ("D48"
models). UST DC/DC’s are fully isolated (1000Vdc
guaranteed) and include input (pi type) and output
filters within their package. Output transient
response is a quick 200μsec, while output ripple
and noise are typically 75mVp-p.
These rugged modules are fully encapsulated
with a thermally conductive potting compound that
contributes to their outstanding moisture/vibration
resistance and impressive MTBF. They operate over
the full –40 to +75°C temperature range without
derating. All models have been thoroughly characterized (electrically, mechanically and thermally),
qualified (including HALT), and EMI/EMC tested.
Additionally, they are certified to UL1950, CSA 22.2
No. 950 and IEC950.
DATEL’s UST Model 3W DC/DC’s are excellent
selections for telecom/datacom, computer and
process-control applications demanding small size,
low cost and high reliability. If required, their design
"flexibility" allows for easy modification to your
application-specific requirements.
Guaranteed efficiencies to 73%
–40 to +75°C full-power operation
Internal input/output filtering
UL1950/C22.2 No. 950/IEC950 certified
Modifications and customs for OEM’s
+VOUT
+VIN
COMMON
–VIN
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Figure 1. Simplified Block Diagram
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
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