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NGA Series
Non-Isolated Wide Input DC/DC Converters
SELECTION GUIDE
Nominal Input Voltage Output Voltage Package Style
SIP DIP SIP DIP SIP DIP SIP DIP SIP DIP V W % %/% % mVp-p C
Output Current
Nominal Input Power Consumption Nominal Current at Full Load at Shutdown Efficiency
Order Code
V
NGA10S15018SC NGA10S15018DC NGA10S15025SC NGA10S15025DC NGA10S15033SC NGA10S15033DC NGA10S15050SC NGA10S15050DC NGA10S15050SEC1 NGA10S15050DEC1 15 15 15 15 15 15 15 15 15 15
V
1.8 1.8 2.5 2.5 3.3 3.3 5.0 5.0 5.0 5.0
Min. Full Min. Nom. Max. Min. Nom. Max. Min. Max. Load Load VIN VIN VIN VIN VIN VIN VIN VIN A mA mW %
0 0 0 0 0 0 0 0 0 0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 847 847 1142 1142 1478 1478 1493 1493 1493 1493 280 280 380 380 480 480 705 705 705 705 160 160 210 210 269 269 388 388 388 388 0.5 0.5 0.5 0.5 0.5 0.5 1.0 1.0 1.0 1.0 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 16.1 16.1 16.1 16.1 16.1 16.1 16.1 16.1 16.1 16.1 89 89 92 92 94 94 95 95 95 95 81 81 85 85 88 88 92 92 92 92
FEATURES
RoHS compliant Efficiency to 95% Industry standard footprint Short circuit protection Wide input range 1.8V, 2.5V, 3.3V & 5V Output Operating temperature range -40C to 85C SMD construction Optional shutdown & trim pins (NGA10S15050SEC & NGA10S15050DEC)
INPUT CHARACTERISTICS
Parameter
Voltage range
Conditions
Continuous operation, 1.8V, 2.5V & 3.3V output types Continuous operation NGA10S15050SC Continuous operation NGA10S15050SEC 1.8V output types 2.5V output types 3.3V output types 5.0V output types
Min.
4.75 7.0 Variable 2
Typ.
15 15 15 29 49 48 99
Max.
28 28 28
Units
Reflected ripple current
mA p-p
DESCRIPTION
The NGA series is a range of low profile DC/DC converters offering a single regulated output over a wide input voltage range. All parts deliver the full output power up to 85C without the need for external heatsinking while the synchronus rectification design yields excellent efficiencies up to 95%.
OUTPUT CHARACTERISTICS
Parameter
Rated power Voltage set point accuracy Line regulation Load regulation Ripple and noise
Conditions
TA =-40C to 85C
Min.
Typ.
1.5
Max.
10 5.0 0.5 2.0 70
Units
Low line to high line, with external input/ output capacitors, refer to test circuit 10% load to 100% load, with external input/ output capacitors, refer to test circuit BW=DC to 20MHz, with external input/output capacitors, refer to test circuit
0.2 1.5 40
TEMPERATURE CHARACTERISTICS
Parameter
Operation Storage PCB temperature above ambient
Conditions
Min.
-40 -55
Typ.
Max.
85 125
Units
40
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN Minimum load Output trim control Shutdown control Continuous 300C 1.1W 28V 0% OV to +5V relative to COMMON -0.3V to +28V relative to COMMON
For full details go to www.murata-ps.com/rohs
1. If optional VADJ and SD pin are required (as indicated in the mechanical dimensions diagram) include an E in the part number when ordering, i.e. NGA10S1505SEC & NGA10S1505DEC. 2. Supply voltage should exceed output voltage by 1.45V. All specifications typical at TA=25C, nominal input voltage and rated output current unless otherwise specified.
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KDC_NGAC.E02 Page 1 of 5
NGA Series
Non-Isolated Wide Input DC/DC Converters
GENERAL CHARACTERISTICS
Parameter
Switching frequency Transient response Max. over-shoot 50% load change, 1.8V output types 50% load change, 2.5V output types 50% load change, 3.3V output types 50% load change, 5.0V output types 50% load change, 1.8V output types 50% load change, 2.5V output types 50% load change, 3.3V output types 50% load change, 5.0V output types 1.8V, 2.5V & 3.3V output types 5.0V output types VIN Min. to VIN Max. 400VDC from 100pF capacitor via 1500 resistance
Conditions
Min.
270
Typ.
Max.
Units
Transient response Max. under-shoot
Under voltage lock out Start delay ESD
300 330 kHz 90 (160) 84 (145) mV (s) 83 (130) 75 (40) 64 (160) 86 (145) mV (s) 84 (120) 74 (80) 4.0 V 5.0 100 ms Meets MIL-STD-833F method 3015.7
APPLICATION NOTES
External Capacitance
External capacitors are necessary in order to guarantee stability and full parametric performance over the full line and load range. All parts have been tested and characterised using the following values and test circuit.
Test Circuit
Value
CIN 100F, 50V COUT 100F, 10V
Voltage trimming
The trimming (adjust) input on the device allows output voltage adjustment to within 5%1 of the desired VOUT using a resistor with a value determined by the following equations. When open circuit, the output will be +5V. A resistor (RD) between the trim pin and the output pin will adjust the output voltage between +5V to +1.8V. 1 = (22 [1.028VO-1])-1-0.011 RD
Shutdown
When the shutdown pin is shorted to Common, the device's output will be disabled. To shutdown the device the pin should be taken below 0.8V using either an open collector pull down or by using isolated delay contacts. To enable the device output the shutdown pin should be left floating or taken no lower than +1.5V to a maximum of (+28V). If the shutdown pin is to be connected to a long wire, it is recommended that a capacitor (10nF) decouples the shutdown pin to Common in order to avoid the risk of injecting noise into the device circuit.
A resistor (RU) between the trim pin and the Common pin will adjust the device output from +5V to +5.5V. 1 = (1.02VO)-1 -0.0455 RU 91
(
)
All specifications typical at TA=25C, nominal input voltage and rated output current unless otherwise specified. 1. Accuracy of adjustment is subject to tolerance of resistors and initial output accuracy.
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KDC_NGAC.E02 Page 2 of 5
NGA Series
Non-Isolated Wide Input DC/DC Converters
MEAN TIME TO FAILURE (MTTF) 1
Part number
NGA10S15018 NGA10S15025 NGA10S15033 NGA10S15050
25C
1464 1463 1463 1461
Units
KHrs
TERMINOLOGY
Transient Response
Time for VOUT to be within 1% of VNOM where: VOUT 25% + VOUT 75% VNOM = 2
Over-Shoot/Under-Shoot
Max. deviation from final steady state output.
Start Delay
Typical rise time (ms) after control pin high with valid input.
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS - SIP PACKAGE
0.846 (21.49)
RECOMMENDED FOOTPRINT
NGA10S15050SEC
0.312 (7.92)
5* 4 3
0.1 (2.54)
0.825 (20.96)
XYYWW
2 1*
All dimensions in inches 0.01 (mm 0.25mm). All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position.
0.0140.002 (0.350.05) 0.149 (3.78)
0.220 (5.60)
PIN CONNECTIONS
Pin
1* 2 3 4 5*
Function
SD +VIN COMMON +VOUT VADJ
1* 2 3 4 5*
0.878 (22.29) 0.0200.002 (0.500.05) 0.1460.020 (3.700.50)
All dimensions in inches 0.01 (mm 0.25mm). All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position.
Weight: 4.0g * Optional pins available on NGA10S15050SEC only
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KDC_NGAC.E02 Page 3 of 5
NGA Series
Non-Isolated Wide Input DC/DC Converters
PACKAGE SPECIFICATIONS (continued)
MECHANICAL DIMENSIONS - DIP PACKAGE
0.8740.020 (22.190.50) 0.846 (21.49)
RECOMMENDED FOOTPRINT
6
5* 4 3 2 0.825 (20.96)
7
1*
0.2 0.2220.020 (5.650.50 ) 0.0100.002 (0.250.05) 0.753 (19.14) 0.0200.002 (0.500.05)
All dimensions in inches 0.01 (mm 0.25mm). All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position.
PIN CONNECTIONS Pin Function
SD +VIN COMMON +VOUT VADJ NC NC
NGA10S15050DC
0.213 (5.41) 1* 2
7
0.400 (10.16) 6
3 4 5* 0.100 (2.54)
1* 2 3 4 5* 6 7
XYYWW
All dimensions in inches 0.01 (mm 0.25mm) except where stated otherwise. All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position.
Weight: 4.0g * Optional pins available on NGA10S15050DEC only
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate and Tin on the DIP types. Both types in this series are backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KDC_NGAC.E02 Page 4 of 5
NGA Series
Non-Isolated Wide Input DC/DC Converters
PACKAGE SPECIFICATIONS (continued)
TRAY DIMENSIONS - SIP PACKAGE
Tray quantity: 25 All dimensions in inches 0.01 (mm 0.25mm).
TRAY DIMENSIONS - DIP PACKAGE
Tray quantity: 25 All dimensions in inches 0.01 (mm 0.25mm).
USA: UK: France: Japan:
Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Website: www.murata-ps.jp Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com
Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2008 Murata Power Solutions, Inc.
Germany: Munchen, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com
China:
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KDC_NGAC.E02 Page 5 of 5

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