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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
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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.
KDC_NTA.I09 Page 1 of 8
NTA Series
Isolated 1W Dual Output SM DC-DC Converters
OUTPUT CHARACTERISTICS Parameter Rated Power Voltage Set Point Accuracy Line regulation
Load Regulation1
Ripple and Noise
Conditions TA=-40°C to 85°C See tolerance envelope High VIN to low VIN 10% load to rated load, 0303MC & 0503MC 10% load to rated load, 5V output types 10% load to rated load, 0309MC 10% load to rated load, 0509MC & 1209MC 10% load to rated load, 0312MC & 0315MC 10% load to rated load, 0512MC & 1212MC 10% load to rated load, 0515MC & 1215MC BW=DC to 20MHz, 3.3V output types, NTA0305MC & NTA0505MEC BW=DC to 20MHz, all other 5V output types BW=DC to 20MHz, 9V output types BW=DC to 20MHz, 12V output types BW=DC to 20MHz, 15V output types
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Specification
All output types
Storage
0305MC, 0505MEC, 0312MC, 0315MC
Case temperature rise above
0303MC, 0309MC, 0503MC
ambient
0505MC, 1205MC
All other variants
Cooling
Free air convection
Min. Typ. Max. Units 1.0 W
1.0 1.2 %/%
10 15
10 12
9.0 10
6.5 8.0
%
11 14
6.0 8.5
6.0 7.0
40 80
50 100
35 80 mV p-p
50 110
65 110
Min. Typ. Max. Units -40 85 -55 125
19 °C
25 46 35
1. 12V input types have typically 3% less load regulation change.
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KDC_NTA.I09 Page 2 of 8
NTA Series
Isolated 1W Dual Output SM DC-DC Converters
TECHNICAL NOTES
ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NTA series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” For a part holding no specific agency approvals, such as the NTA series, both input and output should normally be ma.