Model Selection Guide

Mechanical Dimensions

Notes:

Pin Connections

Board Layout

Notes:

1. When measuring output ripple, it is recommended that an external 0.47 μF ceramic

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. For noise sensitive applications,

the use of 3.3 μF capacitors will reduce the output ripple.

2. Transient recovery is measured to within a 1% error band for a load step change of

75% to 100%.

3. Operation at no-load will not damage these units. However, they may not meet all

specifications.

4. Dual output units may be connected to provide a 10 VDC, 24 VDC or 30 VDC output.

To do this, connect the load across the positive (+Vout) and negative (-Vout) outputs

and float the output common.

5. The converter should be connected to a low ac-impedance source. An input source

with a highly inductive impedance may affect the stability of the converter. In appli-

cations where the converter output loading is high and input power is supplied over

long lines, it may be necessary to use a capacitor on the input to insure start-up.

In this case, it is recommended that a low ESR (ESR <1.0Ω at 100 kHz) capacitor be

mounted close to the converter. For 12V input units a 4.7 μF is recommended, and

for 24V & 48V units a 2.2 μF.

6. It is recommended that a fuse be used on the input of a power supply for protection.

See the table above for the correct rating.

Derating Curve

3.3 VDC

5 VDC

12 ,15 VDC

±5 VDC

±12, ±15 VDC

Capacitive Load

Pin

Single

Dual

2,3,24

-Vin

-Vin

9NCNC

10

NC

Common

11,12

-Vout

-Vout

13

+Vout

-Vout

14,15

+Vout

+Vout

16

-Vout

Common

1,22,23

+Vin

+Vin

NC: No Connection

Model

Number

Input

Output

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

LF701RW

12

9.0 - 18.0

417

25

3.3

1,200

90.0

79

1,500

LF702RW

12

9.0 - 18.0

595

25

5.0

1,200

60.0

84

1,500

LF703RW

12

9.0 - 18.0

718

25

12.0

625

32.0

87

1,500

LF704RW

12

9.0 - 18.0

710

25

15.0

500

25.0

88

1,500

LF705RW

12

9.0 - 18.0

496

25

±5.0

±500

±25.0

84

1,500

LF706RW

12

9.0 - 18.0

717

25

±12.0

±312

±15.5

87

1,500

LF707RW

12

9.0 - 18.0

710

25

±15.0

±250

±12.5

88

1,500

LF711RW

24

18.0 - 36.0

206

10

3.3

1,200

90.0

80

700

LF712RW

24

18.0 - 36.0

294

10

5.0

1,200

60.0

85

700

LF713RW

24

18.0 - 36.0

355

10

12.0

625

32.0

88

700

LF714RW

24

18.0 - 36.0

355

10

15.0

500

25.0

88

700

LF715RW

24

18.0 - 36.0

245

10

±5.0

±500

±25.0

85

700

LF716RW

24

18.0 - 36.0

355

10

±12.0

±312

±15.5

88

700

LF717RW

24

18.0 - 36.0

351

10

±15.0

±250

±12.5

89

700

LF721RW

48

36.0 - 75.0

103

8

3.3

1,200

90.0

80

350

LF722RW

48

36.0 - 75.0

147

8

5.0

1,200

60.0

85

350

LF723RW

48

36.0 - 75.0

178

8

12.0

625

32.0

88

350

LF724RW

48

36.0 - 75.0

178

8

15.0

500

25.0

88

350

LF725RW

48

36.0 - 75.0

123

8

±5.0

±500

±25.0

85

350

LF726RW

48

36.0 - 75.0

178

8

±12.0

±312

±15.5

88

350

LF727RW

48

36.0 - 75.0

178

8

±15.0

±250

±12.5

88

350

MicroPower Direct

www.micropowerdirect.com

292 Page Street Ste D Stoughton, MA 02072

•

TEL: (781) 344-8226

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FAX: (781) 344-8481

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E-Mail: sales@micropowerdirect.com