PB-4

REV.: 0/2017

www.recom-power.com

DC/DC Converter

RPA50S-W

Series

REMOTE SENSE

RPA50S-483.3SW/P

RPA50S-4805SW/P

RPA50S-4812SW/P

Trim Down all Vout‘s

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

3.33

3.37

3.40

3.43

3.47

3.50

3.53

3.57

3.60

3.63

Volts

R

845

432

287

215

174

143

124

110

97.60

88.7

kOhms

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

5.05

5.10

5.15

5.20

5.25

5.30

5.35

5.4

5.45

5.50

Volts

R

1540

787

523

402

324

267

232

205

182

165

kOhms

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

12.12

12.24

12.36

12.48

12.60

12.72

12.84

12.96

13.08

13.20

Volts

R

4530

2280

1540

1150

931

787

681

604

536

487

kOhms

Trim down

1

2

3

4

5

6

7

8

9

10

%

R

499

243

162

118

93.1

75.0

63.4

53.6

46.4

41.2

kOhms

Trim down

11

12

13

14

15

16

17

18

19

20

%

R

36.5

33.2

29.4

26.1

23.7

21.7

20.0

18.20

16.9

15.0

kOhms

+Vout

+Vin

-Vin

-Vout

(GND)

+Sense

RW1

RW2

R1

R2

-Sense

Trim

RW1 ... wire losses +

RW2 ... wire losses -

R1 ... trim up resistor

R2 ... trim down resistor

The output voltage can be adjusted by both trim and remote sense. The

maximum combined adjustment range ±10%. Derate the maximum out-

put power if using the trim or sense function.

REGULATIONS

Parameter

Condition

Value

Output Accuracy

±3.0%

Line Regulation

3.3Vout

5 & 12Vout

±0.3% max.

±0.1% max.

Load Regulation

0% - 100% load

3.3Vout

5Vout

12Vout

±0.3% max.

±0.2% max.

±0.1% max.

Transient Response

3.3 & 5Vout

25% to 50% load step change

50% to 25% load step change

setting time

100mV typ.

100mV typ.

200µs typ.

12Vout

25% to 50% load step change

50% to 25% load step change

setting time

400mV typ.

400mV typ.

500µs typ.

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