ISSUED DATE :2006/04/14
REVISED DATE :
External Resistor Divider Table
R1
(k )
V
OUT
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
1
21.41
11.50
7.86
5.97
4.81
4.03
3.47
3.04
2.71
2.44
2.23
2.04
1.89
1.75
1.64
1.54
1.45
1.37
1.30
1.23
1.17
1.12
1.07
1.03
0.99
0.95
0.91
0.88
0.85
0.82
0.80
0.77
0.75
0.73
0.71
0.69
0.67
0.65
2
5
10
20
50
R2(k )=(1.242*R1(k ))/(V
OUT
-1.242)
42.83 107.07 214.14 428.28 1070.7
23.00
15.72
11.94
9.63
8.06
6.94
6.09
5.42
4.89
4.45
4.09
3.78
3.51
3.28
3.07
2.90
2.74
2.59
2.46
2.35
2.24
2.15
2.06
1.97
1.90
1.83
1.76
1.70
1.65
1.59
1.54
1.50
1.45
1.41
1.37
1.34
1.30
57.50 115.00 230.00 575.00
39.30
29.86
24.07
20.16
17.35
15.22
13.56
12.22
11.13
10.21
9.44
8.77
8.19
7.69
7.24
6.84
6.48
6.16
5.87
5.60
5.36
5.14
4.94
4.75
4.57
4.41
4.26
4.12
3.99
3.86
3.75
3.64
3.53
3.43
3.34
3.25
78.61 157.22 393.04
59.71 119.42 298.56
48.14
40.32
34.69
30.44
27.12
24.45
22.26
20.43
18.88
17.54
16.39
15.37
14.48
13.68
12.96
12.32
11.74
11.21
10.73
10.28
9.87
9.50
9.15
8.82
8.52
8.24
7.97
7.72
7.49
7.27
7.06
6.87
6.68
6.51
96.28 240.70
80.65 201.62
68.39 173.46
60.88 152.21
54.24 135.59
48.90 122.24
44.52 111.29
40.86 102.14
37.75
35.08
32.77
30.74
28.95
27.36
25.93
24.65
23.48
22.42
21.45
20.56
19.75
18.99
18.29
17.64
17.04
16.47
15.94
15.45
14.98
14.54
14.13
13.74
13.37
13.02
94.38
87.71
81.93
76.86
72.38
68.39
64.82
61.61
58.70
56.05
53.63
51.41
49.36
47.48
45.73
44.11
42.59
41.18
39.86
38.62
37.45
36.36
35.32
34.35
33.42
32.55
R1
(k )
V
OUT
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
3.65
3.70
3.75
3.80
3.85
3.90
3.95
4.00
4.05
4.10
4.15
4.20
4.25
4.30
4.35
4.40
4.45
4.50
4.55
4.60
4.65
4.70
4.75
4.80
4.85
4.90
4.95
5.00
1
0.63
0.62
0.60
0.59
0.58
0.56
0.55
0.54
0.53
0.52
0.51
0.50
0.49
0.48
0.47
0.46
0.45
0.44
0.43
0.43
0.42
0.41
0.41
0.40
0.39
0.39
0.38
0.38
0.37
0.36
0.36
0.35
0.35
0.34
0.34
0.33
0.33
2
1.27
1.24
1.21
1.18
1.15
1.13
1.10
1.08
1.05
1.03
1.01
0.99
0.97
0.95
0.93
0.92
0.90
0.88
0.87
0.85
0.84
0.83
0.81
0.80
0.79
0.77
0.76
0.75
0.74
0.73
0.72
0.71
0.70
0.69
0.68
0.67
0.66
5
3.17
3.09
3.02
2.95
2.88
2.81
2.75
2.69
2.63
2.58
2.53
2.48
2.43
2.38
2.34
2.29
2.25
2.21
2.17
2.14
2.10
2.06
2.03
2.00
1.97
1.94
1.91
1.88
1.85
1.82
1.80
1.77
1.75
1.72
1.70
1.67
1.65
10
6.34
6.19
6.03
5.89
5.76
5.63
5.50
5.38
5.27
5.16
5.05
4.95
4.86
4.76
4.67
4.59
4.50
4.42
4.35
4.27
4.20
4.13
4.06
4.00
3.93
3.87
3.81
3.75
3.70
3.64
3.59
3.54
3.49
3.44
3.40
3.35
3.30
20
12.69
12.37
12.07
11.78
11.51
11.25
11.00
10.76
10.53
10.32
10.11
9.90
9.71
9.52
9.35
9.17
9.01
8.85
8.69
8.54
8.40
8.26
8.12
7.99
7.87
7.74
7.62
7.51
7.40
7.29
7.18
7.08
6.98
6.88
6.79
6.70
6.61
50
31.72
30.93
30.17
29.46
28.78
28.13
27.50
26.91
26.34
25.79
25.26
24.76
24.28
23.81
23.36
22.93
22.52
22.12
21.73
21.35
20.99
20.64
20.31
19.98
19.66
19.36
19.06
18.77
18.49
18.22
17.96
17.70
17.45
17.21
16.98
16.75
16.52
R2(k )=(1.242*R1(k ))/(V
OUT
-1.242)
Note: Small load (greater than 2mA) is necessary as R1 or R2 is larger than 50k . Otherwise, output voltage probably can not be pulled
down to 0V on disable mode.
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GTM reserves the right to make changes to its products without notice.
GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems.
GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
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