ISL9305IRTHWLNCZ-T datasheet(10/17 Pages) INTERSIL

Part #	ISL9305IRTHWLNCZ-T

Description	3MHz Dual 1.5A Step-Down Converters and Dual Low-Input LDOs with I2C Compatible Interface

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Manufacturer	INTERSIL [Intersil Corporation]

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10 / 17 page

ISL9305H

10

FN7724.1

October 5, 2011

I2C Control Registers

All the registers are reset at initial start-up.

DCD OUTPUT VOLTAGE CONTROL REGISTER

DCD1OUT, address 0x00h; DCD2OUT, address 0x01h

Caution: Disable DCD prior to changing from fixed output voltage

to adjustable output voltage or from adjustable output voltage to

fixed output voltage using I2C.

TABLE 2. BUCK CONVERTERS OUTPUT VOLTAGE CONTROL REGISTER

BIT

NAME

ACCESS

RESET

DESCRIPTION

B7

Reserve

-

0

Refer to Table 3

B6

DCDxOUT-6

R/W

0

B5

DCDxOUT-5

R/W

0

B4

DCDxOUT-4

R/W

1

B3

DCDxOUT-3

R/W

0

Refer to Table 3

B2

DCDxOUT-2

R/W

0

B1

DCDxOUT-1

R/W

0

B0

DCDxOUT-0

R/W

0

TABLE 3. DCD1 AND DCD2 OUTPUT VOLTAGE SETTING

DCDOUT

<7:0>

DCD OUTPUT

VOLTAGE

(V)

DCDOUT

<7:0>

DCD OUTPUT

VOLTAGE

(V)

DCDOUT

<7:0>

DCD OUTPUT

VOLTAGE

(V)

DCDOUT

<7:0>

DCD OUTPUT

VOLTAGE

(V)

00

0.825

20

1.625

40

2.425

60

3.225

01

0.850

21

1.650

41

2.450

61

3.250

02

0.875

22

1.675

42

2.475

62

3.275

03

0.900

23

1.700

43

2.500

63

3.300

04

0.925

24

1.725

44

2.525

64

3.325

05

0.950

25

1.750

45

2.550

65

3.350

06

0.975

26

1.775

46

2.575663.375

07

1.000

27

1.800

47

2.600

67

3.400

08

1.025

28

1.825

48

2.625

68

3.425

09

1.050

29

1.850

49

2.650

69

3.450

0A

1.075

2A

1.875

4A

2.675

6A

3.475

0B

1.100

2B

1.900

4B

2.700

6B

3.500

0C

1.125

2C

1.925

4C

2.725

6C

3.525

0D

1.150

2D

1.950

4D

2.750

6D

3.550

0E

1.175

2E

1.975

4E

2.775

6E

3.575

0F

1.200

2F

2.000

4F

2.800

6F

3.600

10

1.225

30

2.025

50

2.825

11

1.250

31

2.050

51

2.850

12

1.275

32

2.075

52

2.875

13

1.300

33

2.100

53

2.900

14

1.325

34

2.125

54

2.925

15

1.350

35

2.150

55

2.950

16

1.375

36

2.175

56

2.975

17

1.400

37

2.200

57

3.000

18

1.425

38

2.225

58

3.025

19

1.450

39

2.250

59

3.050

1A

1.475

3A

2.275

5A

3.075

1B

1.500

3B

2.300

5B

3.100

1C

1.525

3C

2.325

5C

3.125

1D

1.550

3D

2.350

5D

3.150

1E

1.575

3E

2.375

5E

3.175

1F

1.600

3F

2.400

5F

3.200

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