NTA Series
Isolated 1W Dual Output SM DC/DC Converters
SELECTION GUIDE
Order Code
1
Nominal
Input
Voltage
V
3.3
3.3
3.3
3.3
3.3
5
5
5
5
5
5
12
12
12
12
Output
Voltage
V
±3.3
±5
±9
±12
±15
±3.3
±5
±5
±9
±12
±15
±5
±9
±12
±15
Output
Current
mA
±152
±100
±55
±42
±33
±152
±100
±100
±55
±42
±33
±100
±55
±42
±33
Input
Current at
Rated Load
mA
402
388
405
390
392
259
290
251
267
260
256
121
113
111
110
Efficiency
%
75
78
75
77
77
77
69
80
75
77
78
69
74
75
76
Isolation
MTTF
2
Capacitance
pF
29
30
34
40
42
31
33
42
38
44
43
50
72
89
100
kHrs
1005
399
827
375
206
964
1697
367
682
343
188
559
375
243
154
FEATURES
RoHS compliant
Efficiency up to 78%
Wide temperature performance at full
1 Watt load, –40°C to 85°C
UL 94V-0 Package material
Footprint over pins 1.64cm
2
Lead frame technology
3.3V, 5V & 12V Input
3.3V, 5V, 9V, 12V & 15V Output
Internal SMD construction
Toroidal magnetics
1kVDC Isolation
MTTF up to 2.1 Million hours
Power density 1.36W/cm
3
No heatsink required
Custom solutions available
Multi-layer ceramic capacitors
NTA0303MC
NTA0305MC
NTA0309MC
NTA0312MC
NTA0315MC
NTA0503MC
NTA0505MC
NTA0505MEC
NTA0509MC
NTA0512MC
NTA0515MC
NTA1205MC
NTA1209MC
NTA1212MC
NTA1215MC
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, 3V input types
Continuous operation, 5V input types
Continuous operation, 12V input types
Min.
2.97
4.5
10.8
Typ.
3.3
5
12
41
Max.
3.63
5.5
13.2
50
Units
V
mA p-p
ISOLATION CHARACTERISTICS
Parameter
Isolation voltage
Resistance
Conditions
Flash tested for 1 second
Viso= 1000VDC
Min.
1000
10
Typ.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
PRODUCT OVERVIEW
The NTA series of miniature surface mounted
DC/DC Converters employ leadframe
technology and transfer moulding techniques
to bring all of the benefits of IC style
packaging to hybrid circuitry. Co-planarity of the
lead positions is based upon IEC 191-6:1990. The
devices are suitable for all applications where
high volume production is envisaged.
Parameter
Switching frequency
Conditions
0312MC, 0315MC
0303MC, 0305MC, 0503MC, 0505MEC
All other variants
Min.
Typ.
100
110
115
Max.
Units
kHz
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
3
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage V
IN
, NTA03 types
Input voltage V
IN
, NTA05 types
Input voltage V
IN
, NTA12 types
1 second
300°C
700mW
5.5V
7V
15V
1. If components are required in tape and reel format suffix order code code with -R, e.g. NTA0505MC-R.
2. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
3. Supply voltage must be disconnected at the end of the short circuit duration.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
-
email:
mk@murata-ps.com,
tel:
+44 (0)1908 615232
KDC_NTA.G04
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MURATA [ MURATA MANUFACTURING CO., LTD. ]
