NMA 5V & 12V SERIES
Isolated 1W Dual Output DC-DC Converters
SELECTION GUIDE
FEATURES
■ Wide Temperature performance at
full 1 Watt load, –40°C to 85°C
■ Dual Output from a Single Input Rail
■ Industry Standard Pinout
■ Power Sharing on Output
■ 1kVDC Isolation
■ Efficiency to 78%
■ Power Density up to 0.85W/cm
3
■ 5V & 12V Input
■ 5V, 9V, 12V and 15V Output
■ Footprint from 1.17cm
2
■ UL 94V-0 Package Material
■ No Heatsink Required
■ Internal SMD Construction
■ Toroidal Magnetics
■ Fully Encapsulated
■ No External Components Required
■ MTTF up to 2.1 Million hours
■ Custom Solutions Available
■ No Electrolytic or Tantalum
Capacitors
DESCRIPTION
The NMA series of industrial temperature
range DC-DC converters are the standard
building blocks for on-board distributed
power systems. They are 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 1watt.
Nominal
Input Output Output Input Current
Voltage Voltage Current at Rated Load MTTF
1
Order Code (V) (V) (mA) (mA) (%) (pF) kHrs
NMA0505D 5 5 ±100 289 69 28 1697
NMA0509D 5 9 ±55 270 75 32 682
DIP
NMA0512D 5 12 ±42 266 77 34 343
NMA0515D 5 15 ±33 263 78 36 188
NMA0505S 5 5 ±100 289 69 28 1697
NMA0509S 5 9 ±55 270 75 32 682
SIP
NMA0512S 5 12 ±42 266 77 34 343
NMA0515S 5 15 ±33 263 78 36 188
NMA1205D 12 5 ±100 120 69 33 559
NMA1209D 12 9 ±55 113 74 46 375
DIP
NMA1212D 12 12 ±42 111 75 55 243
NMA1215D 12 15 ±33 110 76 54 154
NMA1205S 12 5 ±100 120 69 33 559
NMA1209S 12 9 ±55 113 74 46 375
SIP
NMA1212S 12 12 ±42 111 75 55 243
NMA1215S 12 15 ±33 110 76 54 154
When operated with additional external load capacitance the rise time of the input voltage will determine the
maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the
greater the maximum value of the additional external capacitance for reliable start up.
Parameter Conditions MIN TYP MAX Units
Continuous operation, 5V input types 4.5 5 5.5
Voltage Range
Continuous operation, 12V input types 10.8 12 13.2
V
Reflected Ripple Current 20 33 mA p-p
Parameter Conditions MIN TYP MAX Units
Rated Power
2
T
A
= –40°C to 120°C 1 W
Voltage Set
Point Accuracy
See tolerance envelope
Line Regulation High V
IN
to low V
IN
1.0 1.2 %/%
10% load to rated load, 5V output types 10 12.5
Load Regulation
10% load to rated load, 9V output types 9 10
%
10% load to rated load, 12V output types 6.5 7.5
10% load to rated load, 15V output types 6 7.5
BW=DC to 20MHz, 5V output types 40 75
Ripple & Noise
BW=DC to 20MHz, 9V output types 25 50
mV p-p
BW=DC to 20MHz, 12V output types 25 50
BW=DC to 20MHz, 15V output types 20 50
Short-circuit duration
3
1 second
Internal power dissipation 450mW
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage V
IN
, NMA05 types 7V
Input voltage V
IN
, NMA12 types 15V
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
www.dc-dc.com
1 Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2 See derating curve
3 Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
