KDC_LMEC_E03 Page 1 of 5

www.murata-ps.com

LME Series

Isolated 250mW Single Output DC/DC Converters

www.murata-ps.

com

For full details go to

www.murata-ps.com/rohs

　

SELECTION GUIDE

Order Code

Nominal Input

Voltage

Output

Voltage

Output

Current

Efficiency

Isolation

Capacitance

Package

Style

V

V

mA

%

pF

kHrs

LME0505DC

5

5

50

70

29

2279

DIP

LME0509DC

5

9

28

75

37

1139

LME0512DC

5

12

21

75

41

624

LME0515DC

5

15

16

75

40

357

LME0505SC

5

5

50

70

29

2279

SIP

LME0509SC

5

9

28

75

37

1139

LME0512SC

5

12

21

75

41

624

LME0515SC

5

15

16

75

40

357

LME1205DC

12

5

50

70

38

536

DIP

LME1209DC

12

9

28

75

40

434

LME1212DC

12

12

21

75

43

330

LME1215DC

12

15

16

75

45

237

LME1205SC

12

5

50

70

38

536

SIP

LME1209SC

12

9

28

75

40

434

LME1212SC

12

12

21

75

43

330

LME1215SC

12

15

16

75

45

237

When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external ca-

pacitance 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.

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Voltage range

Continuous operation, 5V input types

4.5

5.0

5.5

V

Continuous operation, 12V input types

10.8

12

13.2

OUTPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

0.25

W

Voltage Set Point Accuracy

See tolerance envelope

Line regulation

1.0

1.2

%/%

10% load to rated load, 5V output types

15

%

10% load to rated load, all other types

10

Ripple and Noise

BW=DC to 20MHz, all output types

100

mV p-p

ISOLATION CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Isolation test voltage

Flash tested for 1 second

1000

VDC

Resistance

Viso= 500VDC

1

GΩ

GENERAL CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Switching frequency

All input types

100

kHz

ABSOLUTE MAXIMUM RATINGS

1 second

Lead temperature 1.5mm from case for 10 seconds

300°C

7V

15V

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

2. See derating curve.

3. Supply voltage must be disconnected at the end of the short circuit duration.

FEATURES

RoHS compliant

Single output rail

1kVDC isolation

High efficiency for low power applications

SIP & DIP package styles

UL 94V-0 package material

5V & 12V input

5V, 9V, 12V & 15V output

No heatsink required

Internal SMD construction

Fully encapsulated with toroidal magnetics

No external components required

MTTF up to 2.2 million hours

Custom solutions available

Pin compatible with NKE, NME & NML

series

PCB mounting

DESCRIPTION

The LME series of DC/DC converters are optimised

for low-power operation. They are ideally suited to

generating a negative supply where only a posi-

tive rail exists.