SELECTION GUIDE

FEATURES

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2:1 Wide Range Voltage Input

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Continuous Short Circuit Protection

with Current Foldback

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Operating Temperature Range

–40°C to 85°C

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0.5% Regulation

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1kVDC Isolation

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Efficiency to 83%

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

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5V, 9V, 12V & 15V Output

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External Control

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No Electrolytic Capacitors

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Low Noise

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Fully Encapsulated

DESCRIPTION

The NDL series is a range of high

performance miniature DC-DC converters

having regulated outputs over the wide

temperature range of –40°C to 85°C. The

input voltage range is 2:1 with the output

power at 2 watts and the input to output

isolation is 1kVDC. Continuous short circuit

protection, external control and extremely

small SIP packaging provide state of the art

functionality. The use of ceramic capacitors

and a ceramic substrate, with a tough chip

and wire bonded MOSFET power transistor

die and SMD construction, provide genuine

high reliability. Nominal input voltages of

5,12,24 and 48V with output voltages of

5,9,12 and 15V are available as standard

with custom parts on request. The plastic case

is rated to UL 94V-0 with encapsulant to UL

94V-1. Connection pins are phosphor bronze

with a 60/40 tin lead solder dipped finish.

Nominal Rated

Input

Input

Output

Voltage Voltage

Full Load

Full Load

Order Code

(V)

(V)

(mA)

(mA)

(mA)

(%)

(pF)

kHrs

NDL0505S

5

5

100

400

606

66

26

2015

NDL0509S

5

9

55

222

558

71

27

1998

NDL0512S

5

12

42

167

559

71

26

1980

NDL0515S

5

15

33

134

549

73

27

1965

NDL1205S

12

5

100

400

228

73

39

1994

NDL1209S

12

9

55

222

211

79

38

1981

NDL1212S

12

12

42

167

208

80

47

1961

NDL1215S

12

15

33

134

206

81

47

1947

NDL2405S

24

5

100

400

112

74

37

1722

NDL2409S

24

9

55

222

102

81

40

1711

NDL2412S

24

12

42

167

100

81

51

1696

NDL2415S

24

15

33

134

100

83

58

1685

NDL4805S

48

5

100

400

57

73

39

1719

NDL4809S

48

9

55

222

52

80

40

1709

NDL4812S

48

12

42

167

51

81

53

1694

NDL4815S

48

15

33

134

51

82

65

1683

Parameter

Conditions

MIN

TYP

MAX

Units

All NDL05 Types

4.5

5

9

Voltage Range

All NDL12 Types

9

12

18

VDC

All NDL24 Types

18

24

36

All NDL48 Types

36

48

72

Reflected

All NDL05 types when 100µF at input

250

Ripple

All NDL12 types when 100µF at input

150

mA p-p

Current

All NDL24 types when 10µF at input

300

380

All NDL48 types when 10µF at input

140

170

Parameter

TYP

MAX

Units

All NDL 05/12 types with external

±1

±5

Voltage Set

input/output capacitors

%

Point Accuracy

All NDL 24/48 types with external

±2

±5

input/output capacitors

All NDL 05/12 types, Low line to high line,

Line Regulation

With external input/output capacitors

0.05

0.5

%

All NDL 24/48 types, Low line to high line,

With external input/output capacitors

0.04

0.4

All NDL 05/12 types, Minimum load to rated load,

Load Regulation

With external input/output capacitors

0.2

0.75

%

All NDL 24/48 types, Minimum load to rated load,

With external input/output capacitors

0.2

0.75

Ripple

B/W=20Hz to 300kHz

mV rms

With external input/output capacitors

5

10

All NDL 05 types, B/W=DC to 100MHz

With external input/output capacitors

20

35

Noise

All NDL 12 types, B/W=DC to 100MHz

mV p-p

With external input/output capacitors

110

170

All NDL 24/48 types, B/W=DC to 100MHz

With external input/output capacitors

50

100

Shutdown Power V

2.8

mW

INPUT CHARACTERISTICS

OUTPUT CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

1 Refer to power derating graph for operation of 5V input types at 4.5 to 6V.

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

3 A lower load condition is entirely safe but higher levels of output ripple will be experienced.

4 Calculated using MIL-HDBK-217F with nominal input voltage at full load.

5 Refer to recommended test circuit for external input/output capacitors.

Short-circuit protection

continuous

Lead temperature 1.5mm from case for 10 seconds

300°C

Control pin input current

10mA

Input voltage 05 types

10V

Input voltage 12 types

20V

Input voltage 24 types

40V

Input voltage 48 types

80V

NDL SERIES

Isolated 2W Wide Input Single Output DC-DC Converters

www.dc-dc.com