www.murata-ps.com
NTA Series
Isolated 1W Dual Output SM DC-DC Converters
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 1.64cm2
Lead frame technology
3.3V, 5V & 12V Input
3.3V, 5V, 9V, 12V & 15V Output
Internal SMD construction
Toroidal magnetics
1kVDC Isolation ‘Hi Pot Test’
MTTF up to 2.1 Million hours
Power density 1.36W/cm3
No heatsink required
Custom solutions available
Multi-layer ceramic capacitors
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.
SELECTION GUIDE
Order Code1
Nominal
Input
Voltage
V
NTA0303MC
3.3
NTA0305MC
3.3
NTA0309MC
3.3
NTA0312MC
3.3
NTA0315MC
3.3
NTA0503MC
5
NTA0505MC
5
NTA0505MEC
5
NTA0509MC
5
NTA0512MC
5
NTA0515MC
5
NTA1205MC
12
NTA1209MC
12
NTA1212MC
12
NTA1215MC
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
Isolation
Capacitance
MTTF2
% pF kHrs
75 29 1005
78 30 399
75 34 827
77 40 375
77 42 206
77 31 964
69 33 1697
80 42 367
75 38 682
77 44 343
78 43 188
69 50 559
74 72 375
75 89 243
76 100 154
INPUT CHARACTERISTICS
Parameter
Conditions
Continuous operation, 3V input types
Voltage range
Continuous operation, 5V input types
Continuous operation, 12V input types
Reflected ripple current
Min. Typ. Max. Units
2.97 3.3 3.63
4.5 5 5.5 V
10.8 12 13.2
41 50 mA p-p
ISOLATION CHARACTERISTICS
Parameter
Conditions
Isolation voltage
Flash tested for 1 second
Resistance
Viso= 1000VDC
Min. Typ. Max. Units
1000 VDC
10 GΩ
GENERAL CHARACTERISTICS
Parameter
Conditions
0312MC, 0315MC
Switching frequency
0303MC, 0305MC, 0503MC, 0505MEC
All other variants
Min. Typ. Max. Units
100
110 kHz
115
ABSOLUTE MAXIMUM RATINGS
Internal power dissipation
Input voltage VIN, NTA03 types
Input voltage VIN, NTA05 types
Input voltage VIN, NTA12 types
700mW
5.5V
7V
15V
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
1. If components are required in tape and reel format suffix order code with -R, e.g. NTA0505MC-R.
2. 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.
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