NMD Series
Isolated 1W Twin Output DC/DC Converters
SELECTION GUIDE
Order Code
NMD050503DC
NMD050505DC
NMD050509DC
NMD050512DC
NMD050515DC
NMD050503SC
NMD050505SC
NMD050509SC
NMD050512SC
NMD050515SC
NMD120505DC
NMD120509DC
NMD120512DC
NMD120515DC
NMD120505SC
NMD120509SC
NMD120512SC
NMD120515SC
Nominal
Input
Voltage
V
5
5
5
5
5
5
5
5
5
5
12
12
12
12
12
12
12
12
Output
Output
Output
Output
Efficiency
Voltage 1 Voltage 2 Current 1 Current 2
V
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
MTTF
1
kHrs
1615
1615
669
339
187
1615
1615
669
339
187
489
343
229
148
489
343
229
148
Package
Style
V
3.3
5
9
12
15
3.3
5
9
12
15
5
9
12
15
5
9
12
15
mA
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
mA
152
100
56
42
34
152
100
56
42
34
100
56
42
34
100
56
42
34
%
70
70
80
80
80
70
70
80
80
80
70
80
80
80
70
80
80
80
DIP
FEATURES
RoHS compliant
Twin independent outputs
Input/output isolation 1kVDC
Output/output isolation 1kVDC
Power sharing on outputs
Efficiency to 80%
Power density 0.85W/cm
3
UL 94V-0 package material
Footprint from 1.17cm
2
5V & 12V input
One 5V output (V1)
3.3V, 5V, 9V, 12V and 15V output (V2)
No heatsink required
Internal SMD construction
Fully encapsulated with toroidal magnetics
No external components required
MTTF up to 1.6 million hours
Custom solutions available
PCB mounting
SIP
DIP
SIP
When operated
with
additional external load capacitance the rise time of the input voltage will determine the maximum external
capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the
additional external capacitance for reliable start up.
INPUT CHARACTERISTICS
Parameter
Voltage range
Conditions
Continuous operation, 5V input types
Continuous operation, 12V input types
Min.
4.5
10.8
Typ.
5.0
12
Max.
5.5
13.2
Units
V
OUTPUT CHARACTERISTICS
Parameter
Rated power
2
Voltage set point accuracy
Line regulation
Conditions
T
A
=0°C to 125°C
See tolerance envelope
High V
IN
to low V
IN
10% load to rated load, 3.3V output types
10% load to rated load, 5V output types
10% load to rated load, 9V output types
10% load to rated load, 12V output types
10% load to rated load, 15V output types
BW=DC to 20MHz, all output types
Min.
Typ.
Max.
1.0
Units
W
%/%
1.0
Load regulation
DESCRIPTION
The NMD series of DC/DC converters are ideally
suited to applications where a potential difference
exists between loads, e.g. motor control circuits.
The twin outputs offer cost and space savings
by consolidating two DC/DC converters into one
package. All of the rated power may be drawn
from a single output provided the total load does
not exceed 1 watt.
Ripple and noise
1.2
15
15
10
10
10
75
%
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
3
Lead temperature 1.5mm from case for 10 seconds
Input voltage V
IN
, NMD05 types
Input voltage V
IN
, NMD12 types
1 second
300°C
7V
15V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. See derating curve.
3. Supply voltage must be disconnected at the end of the short circuit duration.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
-
email:
mk@murata-ps.com,
tel:
+44 (0)1908 615232
KDC_NMDC.D02
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