Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (print) +9 V, -9 V 56 mA 1 W No. of outputs: 2 x

NKA Series

Isolated Sub-Miniature 1W Dual Output DC/DC Converters

KDC_NKA.J02 Page 1 of 7

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SELECTION GUIDE

Order Code

Nominal

Input

Voltage

Output

Voltage

Output

Current

Input

Current at

Rated Load

Efﬁciency

Isolation

Capacitance

MTTF

Package

Style

V V mA mA % pF kHrs

NKA0303DC 3.3 ±3.3 ±152 407 74 20 195

DIP

NKA0305DC 3.3 ±5 ±100 383 79 22 1121

NKA0309DC 3.3 ±9 ±56 402 75 30 1035

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

SIP

NKA0305SC 3.3 ±5 ±100 383 79 22 1121

NKA0309SC 3.3 ±9 ±56 402 75 30 1035

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

DIP

NKA0505DC 5 ±5 ±100 285 70 21 1697

NKA0505DEC 5 ±5 ±100 249 80 26 1557

NKA0509DC 5 ±9 ±56 263 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

SIP

NKA0505SC 5 ±5 ±100 285 70 21 1697

NKA0505SEC 5 ±5 ±100 249 80 26 1557

NKA0509SC 5 ±9 ±56 263 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

DIP

NKA1209DC 12 ±9 ±56 106 79 48 375

NKA1212DC 12 ±12 ±42 104 81 55 243

NKA1215DC 12 ±15 ±33 102 82 60 154

NKA1205SC 12 ±5 ±100 112 74 33 559

SIP

NKA1209SC 12 ±9 ±56 106 79 48 375

NKA1212SC 12 ±12 ±42 104 81 55 243

NKA1215SC 12 ±15 ±33 102 82 60 154

NKA0505DEC/NKA0505SEC offer higher efﬁciency than NKA0505SC/NKA0505DC but over a narrower operating temperature range.

See temperature characteristics graph.

INPUT CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Voltage range

Continuous operation, 3.3V input types 2.97 3.3 3.63

VContinuous operation, 5V input types 4.5 5 5.5

Continuous operation, 12V input types 10.8 12 13.2

Reﬂected ripple current

3.3V input types 30 60

mA p-p

All other types 20 35

ABSOLUTE MAXIMUM RATINGS

Lead temperature 1.5mm from case for 10 seconds 300°C

Internal power dissipation 550mW

Input voltage V

IN, NKA03 types 5.5V

Input voltage V

IN, NKA05 types 7V

Input voltage V

IN, NKA12 types 15V

1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.

All speciﬁcations typical at T

A=25°C, nominal input voltage and rated output current unless otherwise speciﬁed.

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.

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 0.98cm

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

Summary of content (7 pages)

PAGE 1
NKA Series www.murata-ps.com Isolated Sub-Miniature 1W Dual Output DC/DC Converters SELECTION GUIDE 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.
PAGE 2
NKA Series Isolated Sub-Miniature 1W Dual Output DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Rated Power1 Voltage Set Point Accuracy Line regulation TA=-40°C to 120°C See tolerance envelope High VIN to low VIN 10% load to rated load, 0312 & 0315 10% load to rated load, 3.
PAGE 3
NKA Series Isolated Sub-Miniature 1W Dual Output DC/DC Converters 85°C Safe Operating Area 0.5 0 -40 100 50 0 Ambient Temperature (°C) TOLERANCE ENVELOPES 3.3V output types. Safe Operating Area 120°C 0 -40 150 oad Lin e +1% -7% -7% -15% 75 50 25 Output Load Current (%) +5% VNOM 100 Output Voltage Output Voltage 0.5 100 50 0 Ambient Temperature (°C) 150 +10% Typical L 10 85°C 1.0 All other types. +9% +1% VNOM 1.5 All other types.
PAGE 4
NKA Series Isolated Sub-Miniature 1W Dual Output DC/DC Converters APPLICATION NOTES Minimum load The minimum load to meet datasheet speciﬁcation is 10% of the full rated load across the speciﬁed input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically double the speciﬁed output voltage if the output load falls to less than 5%.
PAGE 5
NKA Series Isolated Sub-Miniature 1W Dual Output DC/DC Converters APPLICATION NOTES (continued) Output Ripple Reduction By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
PAGE 6
NKA Series Isolated Sub-Miniature 1W Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 14 PIN DIP 0.768 (19.50) 0.652 (16.55) 0.234 (5.95) 0.386 (9.80) NKA0505DC XYYWW Pin Function 1 -VIN 7 NC 8 OV 9 +VOUT 11 -VOUT 14 +VIN PIN CONNECTIONS - 6 PIN SIP 0.213 (5.40) 0.181 (4.60) 0.142 (3.60) 0.0196±0.00196 (0.50±0.05) 0.297 (7.55) NKA0515SC XYYWW 0.181 (4.60) 0.142 (3.60) 1 2 4 5 0.024 (0.60) 0.020 (0.50) 6 0.10 (2.
PAGE 7
NKA Series Isolated Sub-Miniature 1W Dual Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 14 Pin DIP Package 6 Pin SIP Package 0.0453 (1.00) Ø 0.0394 (1.15) 6 HOLES Ø Ø0.1 0.0453 (1.00) 0.0394 (1.15) 5 HOLES Ø0.1 0.1 (2.54) 0.1 (2.54) 0.1 (2.54) 0.1 (2.