NMD Series
Isolated 1W Twin Output DC/DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Output
Output
Output
Efficiency MTTF1
Package
Style
Voltage 1 Voltage 2 Current 1 Current 2
Order Code
V
5
V
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
V
3.3
5
mA
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
mA
152
100
56
%
70
70
80
80
80
70
70
80
80
80
70
80
80
80
70
80
80
80
kHrs
1615
1615
669
339
187
1615
1615
669
339
187
489
343
229
148
489
343
229
148
NMD050503DC
NMD050505DC
NMD050509DC
NMD050512DC
NMD050515DC
NMD050503SC
NMD050505SC
NMD050509SC
NMD050512SC
NMD050515SC
NMD120505DC
NMD120509DC
NMD120512DC
NMD120515DC
NMD120505SC
NMD120509SC
NMD120512SC
NMD120515SC
5
5
9
DIP
SIP
5
12
15
3.3
5
42
5
34
5
152
100
56
FEATURES
5
ꢀRoHS compliant
5
9
5
12
15
5
42
ꢀTwin independent outputs
ꢀInput/output isolation 1kVDC
ꢀOutput/output isolation 1kVDC
ꢀPower sharing on outputs
ꢀEfficiency to 80%
ꢀPower density 0.85W/cm3
ꢀUL 94V-0 package material
ꢀFootprint from 1.17cm2
ꢀ5V & 12V input
5
34
12
12
12
12
12
12
12
12
100
56
9
DIP
SIP
12
15
5
42
34
100
56
9
12
15
42
34
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.
ꢀOne 5V output (V1)
INPUT CHARACTERISTICS
Parameter
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
ꢀ3.3V, 5V, 9V, 12V and 15V output (V2)
ꢀNo heatsink required
Voltage range
ꢀInternal SMD construction
ꢀFully encapsulated with toroidal magnetics
ꢀNo external components required
ꢀMTTF up to 1.6 million hours
ꢀCustom solutions available
ꢀPCB mounting
OUTPUT CHARACTERISTICS
Parameter
Rated power2
Conditions
TA=0°C to 125°C
Min.
Typ.
1.0
Max.
1.0
Units
W
Voltage set point accuracy See tolerance envelope
Line regulation
Load regulation
Ripple and noise
High VIN to low VIN
1.2
15
15
10
10
10
75
%/%
%
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
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.
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection3
1 second
300°C
7V
Lead temperature 1.5mm from case for 10 seconds
Input voltage VIN, NMD05 types
Input voltage VIN, NMD12 types
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 TA=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 Page 1 of 4