NMK Series
3kVDC Isolated 2W Single & Dual 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
28
36
36
34
33
53
62
56
28
33
35
31
35
50
53
57
Output
Voltage
Order Code
V
NMK0505SAC
NMK0509SAC
NMK0512SAC
NMK0515SAC
NMK1205SAC
NMK1209SAC
NMK1212SAC
NMK1215SAC
NMK0505SC
NMK0509SC
NMK0512SC
NMK0515SC
NMK1205SC
NMK1209SC
NMK1212SC
NMK1215SC
5
5
5
5
12
12
12
12
5
5
5
5
12
12
12
12
V
5
9
12
15
5
9
12
15
±5
±9
±12
±15
±5
±9
±12
±15
mA
400
222
167
133
400
222
167
133
±200
±111
±83
±67
±200
±111
±83
±67
mA
470
455
450
450
200
190
190
185
470
455
450
450
200
190
190
190
5.7
4.2
3.8
3.4
4.2
2.6
2.4
2.0
5
3.9
3.7
3.5
3.4
2.4
2.2
1.9
%
7.3
5.9
5.1
4.5
4.9
3.1
2.9
2.4
6.2
5.3
4.8
5.2
3.9
2.8
2.7
2.4
mVp-p
18
20
18
17
25
19
17
14
24
18
14
12
21
16
13
13
20
25
20
20
30
20
23
16
40
30
20
20
30
20
20
20
%
80
83
83
85
80
83
85
84
81
83
84
84
80
83
84
83
%
83
86
87
87
83
87
88
89
83
86
87
87
84
87
87
87
kHrs
3998
3718
3328
2855
3532
2417
2246
2020
2324
2158
1931
1655
1952
2021
1821
1574
FEATURES
RoHS compliant
Efficiency from 80%
Power density 1.33W/cm
3
Wide temperature performance at full
2 Watt load, –40°C to 85°C
UL 94V-0 package material
No heatsink required
Industry standard pinout
3kVDC isolation (1 minute)
5V & 12V input
5V, 9V, 12V, & 15V output
Fully encapsulated with toroidal
magnetics
Unbalanced loading capability
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
PRODUCT OVERVIEW
The NMK series of industrial temperature range
DC/DC converters, available in industry standard
SIP packaging offers a power upgrade path
from the 1W NMV series. The NMK offers 3kVDC
isolation with 5V output minimum efficiency of
80% at 2W. The un-regulated NMK series has
superior output voltage set point accuracy of 6%
in conjunction with excellent load regulation for
this converter type.
Unbalanced loading capabilities on dual output
variants, all of the rated output power may be
drawn from a single output.
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage V
IN
, NMK05 types
Input voltage V
IN,
NMK12 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
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Conditions
Flash tested for 1 minute
Viso= 1000VDC
Min.
3000
10
Typ.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
Min.
Typ.
60
Max.
Units
kHz
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_NMKC.C01
Page 1 of 5
MTTF
2
MURATA [ MURATA MANUFACTURING CO., LTD. ]
