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NMA0509DC

P1-P3P4-P6
NMA 5V, 12V & 15V Series
Isolated 1W Dual Output DC/DC Converters
KDC_NMA.G02 Page 4 of 6
www.murata-ps.com/support
APPLICATION NOTES (continued)
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1 1µF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
C2
10µF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less
than 100m at 100 kHz
C3 100nF multilayer ceramic capacitor, general purpose
R1 450 resistor, carbon film, ±1% tolerance
R2 50 BNC termination
T1 3T of the coax cable through a ferrite toroid
RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
Measured values are multiplied by 10 to obtain the specified values.
Differential Mode Noise Test Schematic
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.
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor
should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be
>20MHz.
OSCILLOSCOPE
Y INPUT
SUPPLY
C1 C2 C3 R1 T1
R2
Input Output
DC/DC Converter
R LOAD
+
+
-
-
DC
DC
L
C
Load
Power
Source
Inductor Capacitor
L, µH SMD Through Hole C, µF
NMA0505xC 22 82223C 11R223C 2.2uF
NMA0509xC 100 82104C 11R104C 0.47uF
NMA0512xC 150 82154C 11R154C 0.33uF
NMA0515xC 220 82224C 11R224C 1uF
NMA1205xC 22 82223C 11R223C 2.2uF
NMA1209xC 47 82473C 11R473C 1uF
NMA1212xC 150 82154C 11R154C 0.33uF
NMA1215xC 220 82224C 11R224C 1uF
NMA1505xC 22 82223C 11R223C 2.2uF
NMA1512xC 150 82154C 11R154C 0.33uF
NMA1515xC 220 82224C 11R224C 2.2uF
NMA 5V, 12V & 15V Series
Isolated 1W Dual Output DC/DC Converters
KDC_NMA.G02 Page 5 of 6
www.murata-ps.com/support
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS PIN CONNECTIONS - 14 PIN DIP
Pin Function
1-VIN
7NC
8OV
9+V
OUT
11 -VOUT
14 +VIN
PIN CONNECTIONS - 7 PIN SIP
Pin Function
1+VIN
2-VIN
4-VOUT
5OV
6+V
OUT
0.77 (19.50)
0.385
(9.80)
0.268
(6.80)
0.181 (4.60)
0.142 (3.60)
0.022 (0.55)
0.0178 (0.45)
0.6 (15.24)
0.084
(2.13)
0.3 (7.62)
0.0118 (0.30)
0.0079 (0.20)
0.043
(1.09)
0.1 (2.54)
1
7
14 11 9 8
XYYWWi
NMA0505DC
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: 2.4g (DIP) 2.1g (SIP)
DIP package
SIP package
0.77
(19.50)
0.236
(6.00)
0.394
(10.00)
0.181 (4.60)
0.141 (3.60)
0.0118 (0.30)
0.0079 (0.20)
0.5 (12.70)
0.05
(1.25)
0.0607 (1.5438)
0.099 (2.5162)
0.022 (0.55)
0.0178 (0.45)
0.1 (2.54)
0.022 (0.55)
0.0178 (0.45)
NMA0515SC
XYYWW
1 2 4
5
6
NMA 5V, 12V & 15V Series
Isolated 1W Dual Output DC/DC Converters
KDC_NMA.G02 Page 6 of 6
www.murata-ps.com/support
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. © 2012 Murata Power Solutions, Inc.
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following operating requirements
and the
Life and Safety Critical Application Sales Policy:
Refer to:
http://www.murata-ps.com/requirements/
PACKAGE SPECIFICATIONS (continued)
RECOMMENDED FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS





Unless otherwise stated all dimensions in inches (mm) ±0.5mm.
Tube length (14 Pin DIP) : 20.47 (520mm ±2mm).
Tube length (7 Pin SIP) : 20.47 (520mm ±2mm).
14 Pin DIP Tube
7 Pin SIP Tube
14 Pin DIP Package 7 Pin SIP Package
Tube Quantity : 25





0.1 (2.54)
0.045 (1.15)
0.039 (1.00)
Ø
0.1 (2.54)
0.045 (1.15)
0.039 (1.00)
Ø
0.1 (2.54)
0.1 (2.54)
5 HOLES
0.00394 (0.1)
5 HOLES
0.00394 (0.1
P1-P3P4-P6

NMA0509DC

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Manufacturer:
Murata Power Solutions
Description:
Isolated DC/DC Converters 1W 5V to +/-9V
Lifecycle:
New from this manufacturer.
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