FEATURES

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Wide Temperature performance at

full 2 Watt load, –40°C to 85°C

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Dual Output from a Single Input Rail

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Industry Standard Pinout

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Power Sharing on Output

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1kVDC Isolation

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Efficiency to 86%

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5V, 12V, 24V & 48V Input

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5V, 9V,12V and 15V Output

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UL 94V-0 Package Material

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No Heatsink Required

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Internal SMD Construction

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Toroidal Magnetics

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Fully Encapsulated

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No External Components Required

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MTTF up to 2.0 Million hours

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Custom Solutions Available

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No Electrolytic or Tantalum

Capacitors

DESCRIPTION

The NMH series of industrial temperature

range DC-DC converters are the standard

building blocks for on-board point-of-use

power systems. They are ideally suited for

providing dual rail supplies on single rail

boards with the added benefit of galvanic

isolation to reduce circuit noise. All of the

rated power may be drawn from a single pin

provided the total load does not exceed 2W.

Pin compatibility with the NMA 1 watt series

ensures minimal effort in upgrading

distributed power systems.

Parameter

Conditions

MIN

TYP

MAX

Units

2

W

Output Voltage NMH0505

–5

7.5

%

Accuracy

All other types

–5

5

Line Regulation High V

1.0

1.2

%/%

10% load to rated load, 5V output types

5

10

Load Regulation

10% load to rated load, 9V output types

%

10% load to rated load, 12V output types

3

10

10% load to rated load, 15V output types

BW=DC to 20MHz, 5V output types

150

200

Ripple & Noise

BW=DC to 20MHz, 9V output types

100

150

mV p-p

BW=DC to 20MHz, 12V output types

80

150

BW=DC to 20MHz, 15V output types

70

150

OUTPUT CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

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.

4 Replace suffix “S” with “D” for DIP package style.

1second

Internal power dissipation

300mW

Lead temperature 1.5mm from case for 10 seconds

300°C

7V

15V

28V

54V

SELECTION GUIDE

Nominal

Input

Output

Output

Input Current

Voltage

Voltage

Current

at Rated Load

Order Code

(V)

(V)

(mA)

(mA)

(%)

(pF)

kHrs

NMH0505S

5

5

±200

500

80

24

1574

NMH0509S

5

9

±111

494

81

28

663

SIP

NMH0512S

5

12

±83

488

82

30

338

NMH0515S

5

15

±67

476

84

33

187

NMH1205S

12

5

±200

208

80

35

490

NMH1209S

12

9

±111

201

83

55

343

SIP

NMH1212S

12

12

±83

198

84

63

229

NMH1215S

12

15

±67

198

84

66

148

NMH2405S

24

5

±200

103

81

41

318

NMH2409S

24

9

±111

98

85

75

249

SIP

NMH2412S

24

12

±83

97

86

95

183

NMH2415S

24

15

±67

97

86

104

127

NMH4805S

48

5

±200

51

82

45

235

NMH4809S

48

9

±111

51

82

74

195

SIP

NMH4812S

48

12

±83

49

85

90

152

NMH4815S

48

15

±67

49

85

112

112

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

Continuous operation, 24V input types 21.6

24

26.4

Continuous operation, 48V input types 43.2

48

52.8

5V input types

50

Reflected Ripple Current

12V input types

70

mA p-p

24V input types

130

48V input types

200

INPUT CHARACTERISTICS

NMH SERIES

Isolated 2W Dual Output DC-DC Converters

www.dc-dc.com