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Home     ELTIM VR4-xx module Voltage Regulator
Price per piece
ELTIM VR4-xx module Voltage Regulator
Price per piece
ELTIM VR4-xx module Voltage Regulator<br />Price per piece

ELTIM VR4-xx module Voltage Regulator
Price per piece

+/- Voltage regulator board for universal use. Fits on large PS- and MLGO boards.



€ 49.95

Article code: VR4-xx

Some of our Voltage Stage boards do not allow power rail voltages above, say 35V. If you still want to use f.e. a VS-20 in that case, you'll also need a Voltage regulator (VR-30, +/- 30V) board. It fits on most of our Power Supply modules. Extra (Murata) RF-decoupling capacitors over the power lines. Dimensions 70x28,5x8mm.

Just by changing two resistors, we can alter the output voltage withing 40V max. of input voltage level. Unlisted output voltages on request.

LM 317/337 output voltage resistor table









according to the formula in het datasheets:


Uin min
Uin max

Uout

R1
R2
6,25
41,25

1,25

240
0
6,5
41,5

1,5

240
47
7,05
42,05

2,05

240
150
8,3
43,3

3,3

240
390
9,9
44,9

4,9

240
680
10,6
45,6

5,6

240
820
11,6
46,6

6,6

240
1k0
12,65
47,65

7,65

240
1k2
14,25
49,25

9,25

240
1k5
15,85
50,85

10,85

240
1k8
18
53

13

240
2k2
20,65
55,65

15,65

240
2k7
23,85
58,85

18,85

240
3k3
27,05
62,05

22,05

240
3k9
31,3
66,3

26,3

240
4k7
36,1
71,1

31,1

240
5k6
42,5
77,5

37,5

240
6k8
50
85

45

240
8k2
60
95

55

240
10k
70
105

65

240
12k
86
121

81

240
15k
102
137

97

240
18k
124
159

119

240
22k
150
185

145

240
27k
182
217

177

240
33k
215
250

210

240
39k
255
290

250

240
47k
X + 5
X + 40

X

240
etc.







ALWAYS CHECK VOLTAGE BEFORE CONNECTING ELECTRONICS