www.recom-international.com

I-59

REV: 2/2016

Standard Application Circuit

Vout

Com

Vin

TTL

Com

2, 3, 4

9, 10, 11

R-72XX

R-73XX

R-74XX

R1

(Adjust down)

R2

(Adjust up)

12

5, 6, 7,8

1µF

(Optional)

1

C1

OFF

ON

Q1

C2

100µF

ESR= 150mW max.

(Required)

Add a blocking diode to Vout if

current can flow backwards into

the output, as this can damage

the converter.

Protection diodes are required

for high capacitive loads.

Refer to R-5xxxA Datasheet (see

Optional Diode Protection Circuit)

for circuit suggestions.

INNOLINE

DC/DC-Converter

Table 1: Adjustment Resistor Values

R-7xxxP_D

Series

2ADC

R-723.3P/D

R-725.0P/D

R-726.5P/D

R-729.0P/D

R-7212P/D

R-7215P/D

3ADC

R-733.3P/D

R-735.0P/D

R-736.5P/D

R-739.0P/D

R-7312P/D

R-7315P/D

4ADC

R-743.3P/D

R-745.0P/D

R-746.5P/D

Vout (nominal)

3.3Vdc

5.0Vdc

6.5Vdc

9.0Vdc

12Vdc

15Vdc

Vout (adj)

R1

R2

R1

R2

R1

R2

R1

R2

R1

R2

R1

R2

2.5

8.5K

Ω

3.0

33K

Ω

470

Ω

3.2

110K

Ω

1.6K

Ω

3.3

2.2K

Ω

3.4

36K

Ω

3.0K

Ω

3.6

11K

Ω

4.7K

Ω

3.9

4.7K

Ω

8.5K

Ω

4.5

1.6K

Ω

30K

Ω

4.9

820

Ω

220K

Ω

5.0

680

Ω

11K

Ω

5.1

560

Ω

28K

Ω

12K

Ω

5.5

190

Ω

2.6K

Ω

20K

Ω

6.0

47K

Ω

6.5

7.0

4.5K

Ω

13K

Ω

7.5

2.2K

Ω

8.0

31K

Ω

9.0

10

2.2K

Ω

20K

Ω

11

390

Ω

47K

Ω

12

13

2.4K

Ω

36K

Ω

14

390

Ω

76K

Ω

15

16

2.6K

Ω

17

860

Ω

18

The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit

written consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer

shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications.