Model Selection Guide

Mechanical Dimensions

Notes:

Board Layout

Pin

Description

Pin

Description

1-Vin

6

NC

2

+Vin

7

+Vout

3NC

8NC

4

Common

9

NC

5

-Vout

10

NC

NC = No Connection

Pin Connections

MicroPower Direct

www.micropowerdirect.com

292 Page Street Ste D Stoughton, MA 02072

•

TEL: (781) 344-8226

•

FAX: (781) 344-8481

•

E-Mail: sales@micropowerdirect.com

Recommended Solder Profile

Derating Curve

Notes:

1. Output load regulation is specified for a load change of 20% to 100%.

2. When measuring output ripple, it is recommended that an external 0.33

µF ce-

ramic capacitor be placed from the +Vout pin to the -Vout pin for single output

units and from each output to common for dual output units.

3. During operation, care must be taken not to exceed the specified input range

of the unit or to allow the output load to drop below the specified minimum

(10% of full load). Operating the unit under either of these conditions could

cause damage to the unit.

4. These converters are specified for operation without external components. How-

ever, in some applications the addition of input/output capacitors will enhance

stability and reduce output ripple. Recommended capacitor values are:

Vin

Input

Capacitor

Vout

Output

Capacitor

5 VDC

4.7

µF

5 VDC

4.7

µF

12 VDC

2.2

µF

9 VDC

2.2

µF

24 VDC

1.0

µF

12 VDC

1.0

µF

15 VDC

0.47

µF

For applications requiring very low output noise

levels, a simple LC filter should be effective.

5. It is recommended that a fuse be used on the

input of a power supply for protection. See the

Model Selection table above for the correct

rating.

Model

Number

Input

Output

Load

Regulation

(%, Max)

Efficiency

(%, Typ)

Fuse Rating

Slow-Blow

(mA)

Voltage (VDC)

Current (mA)

Voltage

(VDC)

Current

(mA, Max)

Current

(mA, Min)

Nominal

Range

Full-Load

No-Load

LF101ED

5

4.5 - 5.5

277

30

±5.0

±100.0

±10.0

12.0

72

500

LF102ED

5

4.5 - 5.5

250

30

±9.0

±56.0

±6.0

8.0

75

500

LF103ED

5

4.5 - 5.5

256

30

±12.0

±42.0

±5.0

8.5

78

500

LF104ED

5

4.5 - 5.5

253

30

±15.0

±33.0

±4.0

7.0

79

500

LF111ED

12

10.8 - 13.2

112

15

±5.0

±100.0

±10.0

12.0

74

200

LF112ED

12

10.8 - 13.2

110

15

±9.0

±56.0

±6.0

8.0

76

200

LF113ED

12

10.8 - 13.2

105

15

±12.0

±42.0

±5.0

8.5

78

200

LF114ED

12

10.8 - 13.2

104

15

±15.0

±33.0

±4.0

7.0

79

200

LF151ED

3.3

3.0 - 3.6

452

55

±5.0

±100.0

±10.0

12.0

67

750

LF152ED

3.3

3.0 - 3.6

445

55

±12.0

±42.0

±5.0

8.5

68

750

LF153ED

3.3

3.0 - 3.6

432

55

±15.0

±33.0

±4.0

7.0

70

750