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NKE0303SC Datasheet PDF : 7 Pages
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www.murata-ps.com
NKE Series
Isolated Sub-Miniature 1W Single Output DC/DC Converters
FEATURES
RoHS Compliant
Sub-Miniature SIP & DIP Styles
3kVDC Isolation
UL Recognised
Wide Temperature performance at full
1 Watt load, –40°C to 85°C
Increased Power Density to 2.09W/cm3
UL 94V-0 Package Material
Footprint at 0.69cm2
Industry Standard Pinout
3.3V, 5V & 12V Input
3.3V, 5V, 9V, 12V and 15V Output
Internal SMD Construction
Fully Encapsulated with Toroidal
Magnetics
MTTF up to 2.4 Million hours
Custom Solutions Available
No Electrolytic or Tantalum Capacitors
PRODUCT OVERVIEW
The NKE sub-miniature series of DC/DC Converters
is particularly suited to isolating and/or converting
DC power rails. A smaller package size, improved
efficiency, lower output ripple and 3kVDC isolation
capability through state of the art packaging and
improved technology. 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 1 watt output at 85°C.
SELECTION GUIDE
Order Code
NKE0303DC
NKE0305DC
NKE0309DC
NKE0303SC
NKE0305SC
NKE0309SC
NKE0503DC
NKE0505DC
NKE0505DEC
NKE0509DC
NKE0512DC
NKE0515DC
NKE0503SC
NKE0505SC
NKE0505SEC
NKE0509SC
NKE0512SC
NKE0515SC
NKE1205DC
NKE1209DC
NKE1212DC
NKE1215DC
NKE1205SC
NKE1209SC
NKE1212SC
NKE1215SC
Nominal
Input
Voltage
V
3.3
3.3
3.3
3.3
3.3
3.3
5
5
5
5
5
5
5
5
5
5
5
5
12
12
12
12
12
12
12
12
Output
Voltage
V
3.3
5
9
3.3
5
9
3.3
5
5
9
12
15
3.3
5
5
9
12
15
5
9
12
15
5
9
12
15
Output
Current
Input
Current at
Rated Load
mA
mA
303
400
200
400
111
403
303
400
200
400
111
403
303
270
200
289
200
250
111
266
83
260
66
256
303
270
200
289
200
250
111
266
83
260
66
256
200
117
111
107
83
105
66
103
200
117
111
107
83
105
66
103
Efficiency
Isolation
Capacitance
MTTF1
%
pF
kHrs
Min. Typ.
68 72
30
1234
72 75
35
632
71 74
30
1204
68 72
30
1234
72 75
35
632
71 74
30
1204
70 74
40
619
66 69
28
2414
75 77
34
419
72 75
29
1173
73 78
30
633
74 78
32
360
70 74
40
619
66 69
28
2414
75 77
34
419
72 75
29
1173
73 78
30
633
74 78
32
360
68 72
35
620
72 78
50
488
73 79
57
360
76 81
60
252
68 72
35
620
72 78
50
488
73 79
57
360
76 81
60
252
Package
Style
DIP
SIP
DIP
SIP
DIP
SIP
NKE0505SEC/NKE0505DEC offers higher efficiency than NKE0505SC/NKE0505DC but over a narrower operating temperature range.
See temperature characteristics graph.
INPUT CHARACTERISTICS
Parameter
Conditions
Continuous operation, 3.3V input types
Voltage range
Continuous operation, 5V input types
Continuous operation, 12V input types
Reflected ripple current 3.3V input types
Min. Typ. Max.
2.97 3.3 3.63
4.5
5.0
5.5
10.8 12.0 13.2
40
60
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage VIN, NKE03 types
Input voltage VIN, NKE05 types
Input voltage VIN, NKE12 types
300°C
530mW
5.5V
7V
15V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
Units
V
mA p-p
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NKE.K04 Page 1 of 7
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