KDC_NKA Datasheet, PDF (1/4 Pages) Murata Manufacturing Co., Ltd. – Isolated Sub-Miniature 1W Dual Output DC/DC Converters

NKA Series
Isolated Sub-Miniature 1W Dual Output DC/DC Converters
FEATURES
RoHS compliant
Efficiency up to 82%
Wide temperature performance at full
1 Watt load, –40°C to 85°C
UL 94V-0 package material
Reduced footprint at 0.98cm²
Industry standard pinout
Power sharing on output
3.3V, 5V & 12V Input
3.3V, 5V, 9V, 12V and 15V output
Internal SMD construction
Fully encapsulated with toroidal magnetics
No external components required
MTTF up to 1.6 Million hours
No electrolytic or tantalum capacitors
DESCRIPTION
The NKA sub-miniature series of industrial
temperature range DC/DC converters are the
standard building blocks for on-board distributed
power systems. The series offers smaller package
size, improved efficiency, lower output ripple and
3kVDC isolation capability through the use of state
of the art packaging and technology. Ideally suited
for providing dual rail supplies on primarily digital
boards with the added benefit of galvanic isolation
to reduce switching noise.
All of the rated power may be drawn from a single
pin provided the total load does not exceed 1 watt.
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
SELECTION GUIDE
Order Code
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input
Current at
Rated Load
Efficiency
Isolation
Capacitance
MTTF¹
Package
Style
V
V
mA
mA
%
pF
kHrs
NKA0303DC
3.3
±3.3
±152
407
74
20
195
NKA0305DC
3.3
±5
±100
383
79
22
1121
NKA0309DC
3.3
±9
±56
402
75
30
1035 DIP
NKA0312DC
3.3
±12
±42
390
78
31
375
NKA0315DC
3.3
±15
±33
384
79
32
206
NKA0303SC
3.3
±3.3
±152
407
74
20
195
NKA0305SC
3.3
±5
±100
383
79
22
1121
NKA0309SC
3.3
±9
±56
402
75
30
1035 SIP
NKA0312SC
3.3
±12
±42
390
78
31
375
NKA0315SC
3.3
±15
±33
384
79
32
206
NKA0503DC
5
±3.3
±152
259
77
22
205
NKA0505DC
5
±5
±100
285
70
21
1697
NKA0505DEC
5
NKA0509DC
5
±5
±100
249
±9
±56
263
80
26
1557
DIP
76
25
682
NKA0512DC
5
±12
±42
255
78
28
343
NKA0515DC
5
±15
±33
253
79
29
188
NKA0503SC
5
±3.3
±152
259
77
22
205
NKA0505SC
5
±5
±100
285
70
21
1697
NKA0505SEC
5
NKA0509SC
5
±5
±100
249
±9
±56
263
80
26
1557
SIP
76
25
682
NKA0512SC
5
±12
±42
255
78
28
343
NKA0515SC
5
±15
±33
253
79
29
188
NKA1205DC
12
±5
±100
112
74
33
559
NKA1209DC
12
±9
±56
106
79
48
375
DIP
NKA1212DC
12
±12
±42
104
81
55
243
NKA1215DC
12
±15
±33
102
82
60
154
NKA1205SC
12
±5
±100
112
74
33
559
NKA1209SC
12
±9
±56
106
79
48
375
SIP
NKA1212SC
12
±12
±42
104
81
55
243
NKA1215SC
12
±15
±33
102
82
60
154
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.
NKA0505DEC/NKA0505SEC offer higher efficiency than NKA0505SC/NKA0505DC 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
All other types
Min. Typ. Max. Units
2.97 3.3 3.63
4.5
5
5.5
V
10.8 12 13.2
30
60
mA p-p
20
35
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection²
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage VIN, NKA03 types
Input voltage VIN, NKA05 types
Input voltage VIN, NKA12 types
1 second
300°C
550mW
5.5V
7V
15V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
Technical enquiries - email: [e-mail], tel: [phone]
KDC_NKAC.I02 Page 1 of 4