ISL9440A datasheet(7/14 Pages) INTERSIL

Part #	ISL9440A

Description	Triple PWM Step-Down Synchronous Buck Controller and One LDO

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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7 / 14 page

7

AN1454.0

September 25, 2009

TABLE 2. BILL OF MATERIALS

ITEM

QTY

PART REFERENCE

VALUE

DESCRIPTION

PART NUMBER

MANUFACTURER

1

C1

0.22µF

2

3

CB1, CB2, CB3

0.22µFF CERAMIC CAPS, X5R, 16V

AVX, TDK, Murata

3

1

CFIN1

0.47µF

CERAMIC CAPS, X5R, 35V

AVX, TDK, Murata

4

3

CIN1, CIN2, CIN11

150µF

ALUM. ELEC. CAPS, 35V

Panasonic

5

6

CIN3, CIN4, CIN6, CIN7, CIN8, CIN9

10µF

CERAMIC CAPS, X5R, 35V

AVX, TDK, Murata

6

2

CO11, CO12, CO21, CO22

330µF

POSCAP, 6.3V, ESR 9m

6TPF330M9L

Sanyo

7

5

CO13, CO14, CO23, CO24, CO41

10µF

CERAMIC CAPS, 0805, X5R, 6.3V

AVX, TDK, Murata

8

2

CO31, CO32

150µF

SANYO, OSCON, 16V

Sanyo

9

2

CO33, CO34

10µF

CERAMIC CAPS, X5R, 25V

AVX, TDK, Murata

10

1

CO42

150µF

POSCAP, 6.3V

4TPE100MZB

Sanyo

11

1

CVCC1

4.7µF

CERAMIC CAPS, X5R, 16V

AVX, TDK, Murata

12

2

CFF1, CFF2

220pF

CERAMIC CAPS, NP0, 50V

Generic

13

1

CFF3

330pF

CERAMIC CAPS, NP0, 50V

Generic

14

3

CSS1, CSS2, CSS3

22nF

CERAMIC CAPS, NP0, 50V

Generic

15

1

L1

2.2µH

POWER INDUCTOR

IHLP5050FDER2R2M01 Vishay

16

1

L2

1.5µH

POWER INDUCTOR

IHLP5050FDER1R5M01 Vishay

17

1

L3

3.3µH

POWER INDUCTOR

IHLP5050FDER3R3M01 Vishay

18

3

QL1, QL2, QL3

N MOSFET, 30V

RJK0330DPB

Renesas

19

2

QU1, QU2

N MOSFET, 30V

RJK0305DPB

Renesas

20

1

QU3

N MOSFET, 30V

RJK0332DPB

Renesas

21

1

Q4

P MOSFET, 20V

Si4423DY

Vishay

22

1

R1

105k

Ω RESISTOR, 0603, 1/16W

Generic

23

1

R2

20k

Ω

RESISTOR, 0603, 1/16W

Generic

24

2

R6, R10

10k

Ω

RESISTOR, 0603, 1/16W

Generic

25

1

R3

140k

Ω RESISTOR, 0603, 1/16W

Generic

26

1

R5

47

Ω

RESISTOR, 0603, 1/16W

Generic

27

1

R8

34k

Ω

RESISTOR, 0603, 1/16W

Generic

28

1

R9

21.5k

Ω RESISTOR, 0603, 1/16W

Generic

29

1

R11

10.7k

Ω RESISTOR, 0603, 1/16W

Generic

30

1

RFIN1

4.7

Ω

RESISTOR, 0603, 1/16W

Generic

31

3

ROC1, ROC2, ROC3

169k

Ω RESISTOR, 0603, 1/16W

Generic

32

1

RPG1

100k

Ω RESISTOR, 0603, 1/16W

Generic

33

2

RSEN1, RSEN2

2.0k

Ω

RESISTOR, 0603, 1/16W

Generic

34

1

RSEN3

1.69k

Ω RESISTOR, 0603, 1/16W

Generic

35

1

U1

QUAD OUTPUT CONTROLLER

ISL9440B

Intersil

OPTIONAL COMPONENTS OR RESISTOR JUMPERS

1

C2

OPT

Generic

2

3

CL1, CL2, CL3

820pF

CERAMIC CAPS, 0805

Generic

3

0

CIN11,CIN5

OPT

Generic

4

0

CO15, CO25, CO35

OPT

Generic

Application Note 1454

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