Model Selection Guide

Mechanical Dimensions

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

D301RW

12

9.0 - 18.0

320

22

5.0

600.0

60.0

78

700

D302RW

12

9.0 - 18.0

316

22

9.0

333.0

33.0

79

700

D303RW

12

9.0 - 18.0

312

22

12.0

250.0

25.0

80

700

D304RW

12

9.0 - 18.0

312

22

15.0

200.0

20.0

80

700

D305RW

12

9.0 - 18.0

320

22

±5.0

±300.0

±30.0

78

700

D306RW

12

9.0 - 18.0

316

22

±9.0

±167.0

±17.0

79

700

D307RW

12

9.0 - 18.0

312

22

±12.0

±125.0

±13.0

80

700

D308RW

12

9.0 - 18.0

312

22

±15.0

±100.0

±10.0

80

700

D311RW

24

18.0 - 36.0

160

10

5.0

600.0

60.0

78

350

D312RW

24

18.0 - 36.0

158

10

9.0

333.0

33.0

79

350

D313RW

24

18.0 - 36.0

156

10

12.0

250.0

25.0

80

350

D314RW

24

18.0 - 36.0

154

10

15.0

200.0

20.0

81

350

D315RW

24

18.0 - 36.0

160

10

±5.0

±300.0

±30.0

78

350

D316RW

24

18.0 - 36.0

158

10

±9.0

±167.0

±17.0

79

350

D317RW

24

18.0 - 36.0

156

8

±12.0

±125.0

±13.0

80

350

D318RW

24

18.0 - 36.0

154

8

±15.0

±100.0

±10.0

81

350

Pin

Single

Dual

1

-Vin

-Vin

2

+Vin

+Vin

3

Remote ON/OFF

5NF

NF

6

+Vout

+Vout

7

-Vout

Common

8

CS

-Vout

NF = No Function

Pin Connections

Notes:

1. When measuring output ripple, it is recommended that an external ceramic capaci-

tor (approx. 1 µF to 10 µF) be placed from the +Vout pin to the -Vout pin for single

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

2. These units should not be operated with a load under 10% of full load. Operation

at no-load may cause damage to the unit.

3. These converters are specified for operation without external components. However,

in some applications the addition of input/output capacitors will enhance stability and

reduce output ripple.

Recommended capaci-

tor values are given in

the table at right. Using

simple LC filter networks

on the input/output will

provide further improve-

ment. This only requires

the addition of small

inductors to the input/output filter circuits. Recommended values are 4.7 µH to 120

µH for an input inductor and 2.2 µH to 10 µH for an output inductor.

Output ripple on single output units may

be further enhanced by using the CS termi-

nal (single output units operated at 50%

load or below should use this function). A

low ESR capacitor is connected between

the CS pin and the -Vout pin (the anode of the capacitor is connected to the -Vout

pin). Recommended capacitor values are given in the table above. If not used, the

CS pin should be left open.

4. Dual output units may be connected to provide a 10V, 18V, 24V or 30 VDC output.

To do this, connect the load across the +Vout and -Vout outputs and float the

output common.

5. The remote on/off control pin is referenced

to the -Vin pin (pin 1). Input current to the

pin should be between 5 - 10 mA with a

maximum of 20 mA.

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

tion. See the Model Selection table above for the correct rating.

Vin

Input

Capacitor

Vout

Output Capacitor

0 - 70ºC

(Electrolitic)

-40 - 85ºC

(Tantalum)

12 VDC

100

µF

5 VDC

100

µF

47

µF

24 VDC

10 - 47

µF

9 VDC

100

µF

47

µF

12 VDC

100

µF

47

µF

15 VDC

100

µF

47

µF

Output Voltage

5V

9V

12V

15V

CS

47

µF - 100 µF 22 µF - 47 µF

Min

Max

On

<0.6 VDC to Open Circuit

Off

2.7 VDC

15.0 VDC

Mechanical Notes:

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

Output

Max Cap Load

5.0 VDC

2,200

µF

9.0 VDC

1,000

µF

12.0 VDC

820

µF

15.0 VDC

680

µF

±5.0 VDC

±560

µF

±9.0 VDC

±470

µF

±12.0 VDC

±330

µF

±15.0 VDC

±220

µF

Capacitive Load

Derating Curve