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
ºC
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
NGA10S15050SEC
1
NGA10S15050DEC
1
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 V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
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 -40ºC to 85ºC
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 85ºC without the need for exter-
nal 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
T
A
=-40ºC to 85ºC
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 V
IN
Minimum load
Output trim control
Shutdown control
Continuous
300ºC
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 V
ADJ
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 T
A
=25°C, 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
V
IN
Min. to V
IN
Max.
400VDC from 100pF capacitor via 1500Ω 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 (μs)
83 (130)
75 (40)
64 (160)
86 (145)
mV (μs)
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 paramet-
ric 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
C
IN
100μF, 50V
C
OUT
100μF, 10V
Voltage trimming
The trimming (adjust) input on the device allows output voltage adjustment to
within ±5%
1
of the desired V
OUT
using a resistor with a value determined by the
following equations.
When open circuit, the output will be +5V.
A resistor (R
D
) between the trim pin and the output pin will adjust the output volt-
age between +5V to +1.8V.
1
= (22 [1.028V
O
-1])
-1
-0.011
R
D
Shutdown
When the shutdown pin is shorted to Common, the device’s output will be dis-
abled. 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 (R
U
) between the trim pin and the Common pin will adjust the device
output from +5V to +5.5V.
1
=
(1.02V
O
)-1 -0.0455
R
U
91
(
)
All specifications typical at T
A
=25°C, 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
25ºC
1464
1463
1463
1461
Units
KHrs
TERMINOLOGY
Transient Response
Time for V
OUT
to be within 1% of V
NOM
where:
V
OUT
25% + V
OUT
75%
V
NOM
=
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.
0.014±0.002
(0.35±0.05)
0.149
(3.78)
0.220 (5.60)
PIN CONNECTIONS
Pin
1*
2
3
4
5*
Function
SD
+V
IN
COMMON
+V
OUT
V
ADJ
1*
2
3
4 5*
0.878
(22.29)
0.020±0.002
(0.50±0.05)
0.146±0.020
(3.70±0.50)
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
0.874±0.020 (22.19±0.50)
0.846 (21.49)
RECOMMENDED FOOTPRINT
6
5*
4
3
2
0.825 (20.96)
7
1*
0.2
0.222±0.020
(5.65±0.50 )
0.010±0.002
(0.25±0.05)
0.753 (19.14)
0.020±0.002 (0.50±0.05)
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
+V
IN
COMMON
+V
OUT
V
ADJ
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 300ºC 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.
© 2008 Murata Power Solutions, Inc.
Germany:
München, 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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