NMG Series
Isolated 2W Single Output DC/DC Converters
SELECTION GUIDE
Load Regulation
(Typ)
Load Regulation
(Max)
Efficiency (Min.)
Input Current at
Rated Load
Efficiency (Typ.)
Output Current
Ripple & Noise
(Typ)
1
Ripple & Noise
(Max)
1
Nominal Input
Voltage
Isolation
Capacitance
pF
33
40
40
40
40
61
74
68
Output
Voltage
Order Code
V
NMG0505SC
NMG0509SC
NMG0512SC
NMG0515SC
NMG1205SC
NMG1209SC
NMG1212SC
NMG1215SC
5
5
5
5
12
12
12
12
V
5
9
12
15
5
9
12
15
mA
400
222
167
133
400
222
167
133
mA
470
455
450
450
200
190
190
185
5.7
4.2
3.8
3.4
4.2
2.6
2.4
2.0
%
7.3
5.9
5.1
4.5
4.9
3.1
2.9
2.4
mVp-p
28
20
18
16
22
16
13
12
35
25
25
25
35
25
25
25
%
81
84
85
85
81
83
85
85
%
83
86.5
87.5
87.5
83.5
87
88
88
kHrs
3956
3682
3299
2833
2519
2405
2235
2011
FEATURES
RoHS compliant
Efficiency from 81%
Wide temperature performance at full
2 Watt load, –40°C to 85°C
UL 94V-0 package material
Industry standard pinout
1kVDC isolation
5V & 12V input
5V, 9V, 12V, & 15V output
Internal SMD construction
Fully encapsulated with toroidal
magnetics
No external components required
MTTF up to 3.9 million hours
Pin compatible with NMR series
No electrolytic or tantalum capacitors
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
Reflected ripple current
Conditions
Continuous operation, 5V input types
Continuous operation, 12V input types
Min.
4.5
10.8
Typ.
5
12
7.5
Max.
5.5
13.2
15
Units
V
mA p-p
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage V
IN
, NMG05 types
Input voltage V
IN,
NMG12 types
300°C
550mW
7V
15V
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Voltage Set Point Accuracy
Line regulation
Conditions
T
A
=-40
°C
to 85
°C
See tolerance envelope
High V
IN
to low V
IN
Min.
Typ.
Max.
2
Units
W
%/%
1.05
1.2
PRODUCT OVERVIEW
The NMG series of DC/DC Converters is
particularly suited to isolating and/or converting
DC power rails. The galvanic isolation allows the
device to be configured to provide an isolated
negative rail in systems where only positive rails
exist. The wide temperature range guarantees
startup from –40°C and full 2 watt output at 85°C.
Pin compatibility with the NMR series ensures
ease of upgradeability.
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Conditions
Flash tested for 1 second
Viso= 1000VDC
Min.
1000
10
Typ.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
Min.
Typ.
60
Max.
Units
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Case Temperature above
ambient
Conditions
All output types
NMG0505
NMG1205
All other output types
Free air convection
Min.
-40
-50
Typ.
Max.
85
125
30
25
20
Units
°C
Cooling
For full details go to
www.murata-ps.com/rohs
1. See Ripple & Noise characterisation method.
2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
www.murata-ps.com
Technical enquiries
email: mk@murata-ps.com, tel:
+44 (0)1908 615232
KDC_NMGC.A03
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MTTF
2
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