KDC_NDTD_E03 Page 1 of 7

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NDTD Series

Isolated 3W Wide Input Dual Output DC/DC Converters

For full details go to

www.murata-ps.com/rohs

　

SELECTION GUIDE

Order code

Input

voltage

Rated output

voltage

Output current

Input

current

full load

(Min.)

Isolation

capacitance

Full load

V (Nom.)

V

mA

mA

mA

%

pF

kHrs

NDTD0503C

5

±3.3

±113

±454

890

67

30

1644

NDTD0505C

5

±5

±75

±300

804

72

31

1640

NDTD0512C

5

±12

±31

±125

764

76

36

1625

NDTD0515C

5

±15

±25

±100

773

75

34

1609

NDTD1203C

12

±3.3

±113

±454

343

73

30

1668

NDTD1205C

12

±5

±75

±300

321

75

29

1665

NDTD1212C

12

±12

±31

±125

311

78

32

1650

NDTD1215C

12

±15

±25

±100

310

78

36

1633

NDTD2403C

24

±3.3

±113

±454

170

73

30

1671

NDTD2405C

24

±5

±75

±300

156

78

30

1675

NDTD2412C

24

±12

±31

±125

148

82

35

2075

NDTD2415C

24

±15

±25

±100

146

82

41

2080

NDTD4803C

48

±3.3

±113

±454

86

72

30

1667

NDTD4805C

48

±5

±75

±300

79

76

30

1669

NDTD4812C

48

±12

±31

±125

76

80

35

2090

NDTD4815C

48

±15

±25

±100

75

81

36

2045

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Voltage range

5V input types

4.5

5

9

VDC

12V input types

9

12

18

24V input types

18

24

36

48V input types

36

48

75

5V input types

40

90

mA p-p

12V, 24V & 48V input types

30

40

ABSOLUTE MAXIMUM RATINGS

Short-circuit protection

8 hours

Lead temperature 1.5mm from case for 10 seconds

300°C

25% of rated output

Input voltage 5V types

10V

Input voltage 12V types

20V

Input voltage 24V types

40V

Input voltage 48V types

80V

Free air space

10mm Min. around component

1. Please refer to minimum load application note section on page 4.

2. Measured at full load with external input/output capacitors, refer to test circuit.

3. Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C.

4. Please refer to reflected ripple current measurement circuit on page 3.

FEATURES

RoHS compliant

Industry standard footprint

2:1 Input range, 3W output power, minimum

3:1 input range with power derating to 2W

Dual isolated output

Short circuit protection

Operating temperature range -40ºC to 85ºC

Load and line regulation <1% on both

outputs

No heatsink required

1kVDC isolation

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

3.3V, 5V, 12V & 15V Output

Internal SMD construction

Fully encapsulated

DESCRIPTION

The NDTD series is a range of low profile DC/DC

converters offering dual outputs over a 2:1 input

voltage range. All parts deliver 3W output power

up to 85ºC without heatsinking. A flyback oscilla-

tor design with isolated feedback is used to give

regulation over the full operating range of 25% to

100% of full load. It is strongly recommended that

external capacitors be used on input and output

to guarantee performance over full load and input

voltage range (see application notes for guidance).

The plastic case is rated to UL94V-0 and encap-

sulant to UL94V-1 and the connection pins are

formed from a tin plated alloy 42 leadframe.