NMA SERIES
Isolated 1W Dual Output
features
Dual Output from a Single Input Rail
Pin Compatible with NMH
Industry Standard Pinout
Power Sharing on Output
1kVDC Isolation
SIP & DIP Package Styles
Efficiency to 80%
3.3V, 5V, 12V, 24V & 48V 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
PCB Mounting
Custom Solutions Available
7 Pin SIP
V
IN
14
--V
11
+V 0V
9
8
pin connections
14 Pin DIP (top view)
1
GND
7
NC
description
The NMA series of DC-DC converters are
the standard building blocks for on-board
distributed power systems. They are ideally
suited to 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.
1
2
4
5
6
V
IN
GND
--V 0V +V
DC-DC Converters
2-15
2 - NMA SERIES
Power Density 0.85W/cm
3
NMA SERIES
Isolated 1W Dual output
absolute maximum ratings over operating free air* temperature range
Input voltage V
IN
NMA03 types . . . . . . . . .
Input voltage V
IN
NMA05 types . . . . . . . . .
Input voltage V
IN
NMA12 types . . . . . . . . .
Input voltage V
IN
NMA24 types . . . . . . . . .
Input voltage V
IN
NMA48 types . . . . . . . . .
Output power total . . . . . . . . . . . . . . . .
Short-circuit duration . . . . . . . . . . . . . . .
Isolation voltage (flash tested for 1 second) . . . .
Operating free air temperature range . . . . . . .
Storage temperature range . . . . . . . . . . . .
Lead temperature 1.5mm from case for 10 seconds
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. . . . . . 5V
. . . . . . 7V
. . . . . 15V
. . . . . 28V
. . . . . 54V
. . . . . . 1W
. . . . . . 1s
. . 1000VDC
. 0°C to 70°C
1
--55°C to 150°C
. . . . . 300°C
electrical specifications
(measured at T
A
=25°C, at nominal input voltage)
Input voltage range NMA03 types . . . . . . . .
Input voltage range NMA05 types . . . . . . . .
Input voltage range NMA12 types . . . . . . . .
Input voltage range NMA24 types . . . . . . . .
Input voltage range NMA48 types . . . . . . . .
Load voltage regulation (10% to 100% full load)
5V output types . . . . . . . . . . . . . . . .
9V, 12V and 15V output types . . . . . . . . .
Line voltage regulation (10% to 100% full load) . .
Output voltage accuracy . . . . . . . . . . . . .
Input reflected ripple (20 MHz Band limited)
NMA03 and 48 types . . . . . . . . . . . . .
NMA05, 12 and 24 types . . . . . . . . . . .
Output ripple (20 MHz Band limited)
NMA03 and 48 types . . . . . . . . . . . . .
NMA05, 12 and 24 types . . . . . . . . . . .
Insulation resistance at 500VDC . . . . . . . . .
Efficiency at full load, 5V output types . . . . . . .
Efficiency at full load, 9V, 12V and 15V output types
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3.3V
. 5V
12V
24V
48V
10%
10%
10%
10%
10%
. . . . . . . . . 15% max.
. . . . . . . . . 10% max.
. . . . . . . 1.2%/1% of V
IN
See tolerance envelope graph
. . . . . . . . . . 100mV p-p max.
. . . . . . . . . . . 80mV p-p max.
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1
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. . 150mV p-p max.
. . . 75mV p-p max.
. . . 1000M min.
70% typical 65% min.
80% typical 70% min.
* Free air -- requires a minimum of 10mm air space around the component.
See derating curve.
2-16
NMA SERIES
Isolated 1W Dual Output
electrical specifications
(measured at T
A
=25°C, at nominal input voltage)
Temperature drift (V
OUT
) . . . . . . . . . . . . . .
Temperature rise above ambient at full load . . . . .
Weight NMA03/05/12/24 DIP and SIP types (typical)
Weight NMA48 DIP and SIP types (typical) . . . . . .
Switching frequency at full load (typical) . . . . . . .
No load power consumption (typical) . . . . . . . .
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0.03% per °C max.
. . . . 10°C max.
. . . . 2.3 grams
. . . . 2.9 grams
. . . . . 100kHz
. . . . . 100mW
selection guide
3.3V, 5V, 12V and 24V input types
Part Number
NMAXX05D
NMAXX09D
NMAXX12D
NMAXX15D
NMAXX05S
NMAXX09S
NMAXX12S
NMAXX15S
Output Voltage
(V)
5
9
12
15
5
9
12
15
Output Current
Each Output (mA)
100
56
42
34
100
56
42
34
3
1
Package
Style
DC-DC Converters
2-17
2 - NMA SERIES
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