PT6948 datasheet(8/9 Pages) TI

Part #	PT6948

Description	6-A Dual Output 5-V/3.3-V Input Integrated Switching Regulator

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Manufacturer	TI [Texas Instruments]

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For technical support and more information, see inside back cover or visit www.ti.com

Application Notes

1.8

(0.0)

1.85

(1.6)k

Ω

1.9

(3.7)k

Ω

1.95

(6.1)k

Ω

2.0

(9.0)k

Ω

2.05

(12.6)k

Ω

2.1

(17.0)k

Ω

2.15

(22.7)k

Ω

2.2

(30.3)k

Ω

2.25

(41.0)k

Ω

2.3

(57.0)k

Ω

2.35

(83.7)k

Ω

2.4

(137.0)k

Ω

2.45

(297.0)k

Ω

2.5

(0.0)k

Ω

2.55

(2.0)k

Ω

167.0k

Ω #

2.6

(4.3)k

Ω

77.0k

Ω #

2.65

(6.9)k

Ω

47.0k

Ω #

2.7

(10.0)k

Ω

32.0k

Ω #

2.75

(13.6)k

Ω

23.0k

Ω #

2.8

(18.0)k

Ω

2.85

(23.3)k

Ω

2.9

(30.0)k

Ω

2.95

(38.6)k

Ω

3.0

(50.0)k

Ω

3.1

(90.0)k

Ω

3.2

(210.0)k

Ω

3.3

3.4

70.0k

Ω

3.5

25.0k

Ω

3.6

10.0k

Ω

3.7

2.5k

Ω

R1/R3 = (Blue), R2/R4 = Black

# See Note 3

Vo1 Bus

Series Pt #

PT6941/42/43/44

PT6946/47/48

Adj. Resistor

(R1)/R2

Vo(nom)

3.3V

2.5V

Va(req’d)

Table 1

ADJUSTMENT RANGE AND FORMULA PARAMETERS

Vo1 Bus

Vo2 Bus (2)

Series Pt #

PT6941/42/43/44

PT6946/47/48

PT6941

PT6942/46

PT6943/47

PT6944/48

Adj. Resistor

(R1)/R2

(R3)/R4

Vo(nom)

3.3V

2.5V

1.8V

1.5V

1.2V

Va(min)

2.5V *

1.8V *

1.5V *

1.2V *

1.15V

Va(max)

3.5V

2.5V

3.1V

2.2V

2.4V

1.5V †

Rs (k

Ω

Ω)

20.0

13.0

20.0

10.0

29.4

Ref. Note 4:

* (R1) = Zero-ohm link

†(R3) = Zero-ohm link

1.15

(20.6)k

Ω

1.2

(0.0)k

Ω

1.25

(4.0)k

Ω

151.0k

Ω

1.3

(10.0)k

Ω

60.6k

Ω

1.35

(20.0)k

Ω

30.6k

Ω

1.4

(40.0)k

Ω

15.6k

Ω

1.45

(100.0)k

Ω

6.6k

Ω

1.5

(0.0)k

Ω

0.0k

Ω

1.55

(6.0)k

Ω

170.0k

Ω

1.6

(15.0)k

Ω

80.0k

Ω

1.65

(30.0)k

Ω

50.0k

Ω

1.7

(60.0)k

Ω

35.0k

Ω

1.75

(150.0)k

Ω

26.0k

Ω

1.8

(0.0)k

Ω

19.6k

Ω

1.85

(1.6)k

Ω

160.0k

Ω

15.7k

Ω

1.9

(3.7)k

Ω

70.0k

Ω

12.5k

Ω

1.95

(6.1)k

Ω

40.0k

Ω

10.0k

Ω

2.0

(9.0)k

Ω

25.0k

Ω

8.0k

Ω

2.05

(12.6)k

Ω

16.0k

Ω

6.4k

Ω

2.1

(17.0)k

Ω

10.0k

Ω

5.0k

Ω

2.15

(22.7)k

Ω

5.7k

Ω

3.9k

Ω

2.2

(30.3)k

Ω

2.5k

Ω

2.9k

Ω

2.25

(41.0)k

Ω

2.0k

Ω

2.3

(57.0)k

Ω

1.3k

Ω

2.35

(83.7)k

Ω

0.6k

Ω

2.4

(137.0)k

Ω

0.0k

Ω

2.45

(297.0)k

Ω

2.5

2.55

167.0k

Ω

2.6

77.0k

Ω

2.65

47.0k

Ω

2.7

32.0k

Ω

2.75

23.0k

Ω

2.8

17.0k

Ω

2.85

12.7k

Ω

2.9

9.5k

Ω

2.95

7.0k

Ω

3.0

5.0k

Ω

3.1

2.0k

Ω

Vo2 Bus

Series Pt #

PT6941

PT6942/46

PT6943/47

PT6944/48

Adj. Resistor

(R3)/R4

Vo(nom)

2.5V

1.8V

1.5V

1.2V

Va(req’d)

Table 2

ADJUSTMENT RESISTOR VALUES

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