NMK Series
3kVDC Isolated 2W Single & Dual Output DC/DC Converters
SELECTION GUIDE
Order Code
V
5
V
5
mA
400
222
167
133
400
222
167
133
mA
470
455
450
450
200
190
190
185
%
mVp-p
18
%
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
pF
28
36
36
34
33
53
62
56
28
33
35
31
35
50
53
57
kHrs
3998
3718
3328
2855
3532
2417
2246
2020
2324
2158
1931
1655
1952
2021
1821
1574
NMK0505SAC
NMK0509SAC
NMK0512SAC
NMK0515SAC
NMK1205SAC
NMK1209SAC
NMK1212SAC
NMK1215SAC
NMK0505SC
NMK0509SC
NMK0512SC
NMK0515SC
NMK1205SC
NMK1209SC
NMK1212SC
NMK1215SC
5.7
4.2
3.8
3.4
4.2
2.6
2.4
2.0
5
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
20
25
20
20
30
20
23
16
40
30
20
20
30
20
20
20
5
9
20
18
17
25
19
17
14
24
18
14
12
21
16
13
13
5
12
15
5
5
FEATURES
ꢀRoHS compliant
12
12
12
12
5
9
ꢀEfficiency from 80%
ꢀPower density 1.33W/cm3
12
15
5
200 470
111 455
ꢀWide temperature performance at full
2 Watt load, –40°C to 85°C
5
9
3.9
3.7
3.5
3.4
2.4
2.2
1.9
5
12
83
67
450
450
5
15
5
ꢀUL 94V-0 package material
ꢀNo heatsink required
ꢀIndustry standard pinout
ꢀ3kVDC isolation (1 minute)
ꢀ5V & 12V input
12
12
12
12
200 200
111 190
9
12
15
83
67
190
190
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.
ꢀ5V, 9V, 12V, & 15V output
INPUT CHARACTERISTICS
ꢀFully encapsulated with toroidal
magnetics
Parameter
Conditions
Min.
4.5
Typ.
5
Max.
5.5
Units
V
Continuous operation, 5V input types
Continuous operation, 12V input types
Voltage range
10.8
12
13.2
15
ꢀUnbalanced loading capability
Reflected ripple current
7.5
mA p-p
ꢀNo electrolytic or tantalum capacitors
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
300°C
550mW
7V
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.
Input voltage VIN, NMK05 types
Input voltage VIN, NMK12 types
15V
OUTPUT CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
1.05
Typ.
Max.
2
Units
W
Rated Power
TA=-40°C to 85°C
Voltage Set Point Accuracy See tolerance envelope
Line regulation High VIN to low VIN
1.2
%/%
Unbalanced loading capabilities on dual output
variants, all of the rated output power may be
drawn from a single output.
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
3000
10
Max.
Units
VDC
GΩ
Isolation test voltage
Resistance
Flash tested for 1 minute
Viso= 1000VDC
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
Min.
Typ.
60
Max.
Units
kHz
1. See Ripple & Noise characterisation method.
For full details go to
www.murata-ps.com/rohs
2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load.
All specifications typical at T =25°C, nominal input voltage and rated output current unless otherwise specified.
A
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
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