NMD SERIES
Isolated 1W Twin Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Output
Output
Output
Output
Voltage Voltage 1 Voltage 2 Current 1 Current 2 Efficiency MTTF
1
Order Code
NMD050503D
NMD050503S
NMD050505D
NMD050505S
NMD050509D
(V)
5
5
5
5
5
5
5
5
5
5
12
12
12
12
12
12
12
12
(V)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
(V)
3.3
3.3
5
5
9
9
12
12
15
15
5
5
9
9
12
12
15
15
(mA)
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
(mA)
152
152
100
100
56
56
42
42
34
34
100
100
56
56
42
42
34
34
(%)
70
70
70
70
80
80
80
80
80
80
70
70
80
80
80
80
80
80
kHrs
1615
1615
1615
1615
669
669
339
339
187
187
489
489
343
343
229
229
148
148
DIP
SIP
DIP
SIP
DIP
SIP
DIP
SIP
DIP
SIP
DIP
SIP
DIP
SIP
DIP
SIP
DIP
SIP
FEATURES
s
Twin Independent Outputs
s
Output/Output Isolation 1kVDC
s
Power Sharing on Outputs
s
Input/Output Isolation 1kVDC
s
SIP & DIP Package Styles
s
Efficiency to 80%
s
Power Density 0.85W/cm
3
s
5V & 12V Input
s
One 5V Output (V1)
s
3.3V, 5V, 9V, 12V
and 15V Output (V2)
s
Footprint from 1.17cm
s
No Heatsink Required
s
Internal SMD Construction
s
Toroidal Magnetics
s
Fully Encapsulated
s
No External Components Required
s
MTTF up to 1.9 Million hours
s
PCB Mounting
s
Custom Solutions Available
DESCRIPTION
The NMD series of DC-DC converters are
ideally suited to applications where a
potential difference exists between loads, eg
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.
2
NMD050509S
NMD050512D
NMD050512S
NMD050515D
NMD050515S
NMD120505D
NMD120505S
NMD120509D
NMD120509S
NMD120512D
NMD120512S
NMD120515D
NMD120515S
s
UL 94V-0 Package Material
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
Conditions
MIN
TYP
MAX
Units
Voltage Range
Continuous operation, 5V input types
Continuous operation, 12V input types
4.5
10.8
5
12
5.5
13.2
V
OUTPUT CHARACTERISTICS
Parameter
Conditions
2
MIN
TYP
MAX
Units
High V
IN
to low V
IN
10% load to rated load, 3.3V output types
10% load to rated load, 5V output types
Load Regulation 10% load to rated load, 9V output types
10% load to rated load, 12V output types
10% load to rated load, 15V output types
Ripple & Noise BW=DC to 20MHz, All output types
Rated Power
Voltage Set
Point Accuracy
Line Regulation
T
A
= 0擄C to 125擄C
See tolerance envelope
1.0
1
W
1.2
15
15
10
10
10
75
%/%
%
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit duration
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擄C
7V
15V
www.dc-dc.com
1 Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2 See derating curve
3 Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at T
A
=25擄C, nominal input voltage and rated output current unless otherwise specified.
1
2
