PTH04040W

SLTS238C – SEPTEMBER 2005 – REVISED JUNE 2010

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Table 3. Output Voltage Set-Point Resistor Values

VOUT

RSET

VOUT

RSET

0.8

Open

1.425

10.3 k

Ω

0.825

318 k

Ω

1.45

9.82 k

Ω

0.85

158 k

Ω

1.475

9.36 k

Ω

0.875

104 k

Ω

1.5

8.94 k

Ω

0.9

77.5 k

Ω

1.55

8.18 k

Ω

0.925

61.5 k

Ω

1.6

7.51 k

Ω

0.95

50.8 k

Ω

1.65

6.92 k

Ω

0.975

43.2 k

Ω

1.7

6.4 k

Ω

1

37.5 k

Ω

1.75

5.93 k

Ω

1.025

33.1 k

Ω

1.8

5.51 k

Ω

1.05

29.5 k

Ω

1.85

5.13 k

Ω

1.075

26.6 k

Ω

1.9

4.78 k

Ω

1.1

24.2 k

Ω

1.95

4.47 k

Ω

1.125

22.1 k

Ω

2

4.18 k

Ω

1.15

20.4 k

Ω

2.05

3.91k

Ω

1.175

18.8 k

Ω

2.1

3.66 k

Ω

1.2

17.5 k

Ω

2.15

3.44 k

Ω

1.225

16.3 k

Ω

2.2

3.22 k

Ω

1.25

15.3 k

Ω

2.25

3.03 k

Ω

1.275

14.4 k

Ω

2.3

2.84 k

Ω

1.3

13.5 k

Ω

2.35

2.67 k

Ω

1.325

12.7 k

Ω

2.4

2.51 k

Ω

1.35

12.1 k

Ω

2.45

2.36 k

Ω

1.375

11.4 k

Ω

2.5

2.22 k

Ω

1.4

10.8 k

Ω

NOTES:

1. A 0.05-W rated resistor can be used. The tolerance should be 1%, with temperature stability of 100 ppm/°C

(or better). Place the resistor as close to the regulator as possible. Connect the resistor directly between pins

17 and 16 using dedicated PCB traces.

2. Never connect capacitors from VO Adjust to either GND or VO . Any capacitance added to the VO Adjust pin

affects the stability of the regulator.

12

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