6

 2005 Semtech Corp.

www.semtech.com

POWER MANAGEMENT

SC2643VX

Pin Configurations

Pin Descriptions

Ordering Information

#

n

i

Pe

m

a

N

n

i

Pn

o

i

t

c

n

u

F

n

i

P

13

S

O.

3

t

n

e

r

r

u

C

e

s

n

e

S

-

i

b

m

o

C

22

S

O

n

o

i

t

a

r

e

p

o

e

s

a

h

p

2

r

o

f

N

E

S

T

U

O

o

t

t

c

e

n

n

o

C

.

2

t

n

e

r

r

u

C

e

s

n

e

S

-

i

b

m

o

C

31

S

O.

1

t

n

e

r

r

u

C

e

s

n

e

S

-

i

b

m

o

C

4T

U

O

G

B.

n

i

p

e

c

n

e

r

e

f

e

r

G

B

5T

U

O

R

R

E.

t

u

p

t

u

o

r

e

i

fi

l

p

m

a

-

r

o

r

r

E

6E

S

N

E

S

G.

D

N

G

r

o

f

e

s

n

e

s

e

t

o

m

e

R

7B

F.

n

i

p

k

c

a

b

d

e

e

F

8P

E

T

S

C

A

D.

d

e

e

p

s

p

e

t

s

D

I

V

9C

C

V.

p

i

h

c

r

o

f

y

l

p

p

u

s

r

e

w

o

P

0

14

D

I

V.

B

S

M

D

I

V

1

13

D

I

V

2

12

D

I

V

3

11

D

I

V

4

10

D

I

V.

B

S

L

D

I

V

5

15

D

I

V

.

X

.

9

M

R

V

r

o

f

V

5

o

t

p

u

-

ll

u

p

5

D

I

V

;

8

-

K

r

o

f

C

C

V

o

t

p

u

-

ll

u

p

5

D

I

V

.

t

c

e

l

e

s

e

p

y

t

D

I

V

/

B

S

L

2

/

1

D

I

V

6

1D

O

O

G

P.

d

o

o

g

r

e

w

o

P

7

1F

E

R

C

S

O.

g

n

i

t

t

e

s

y

c

n

e

u

q

e

r

f

r

o

t

a

ll

i

c

s

O

8

1D

N

G

A.

g

o

l

a

n

a

r

o

f

d

n

u

o

r

g

n

a

e

l

C

9

11

T

U

O.

1

t

u

p

t

u

o

M

W

P

0

22

T

U

O.

2

t

u

p

t

u

o

M

W

P

1

23

T

U

O.

3

t

u

p

t

u

o

M

W

P

2

24

T

U

O.

n

o

i

t

a

r

e

p

o

e

s

a

h

p

3

r

o

f

C

C

V

o

t

t

c

e

n

n

o

C

.

4

t

u

p

t

u

o

M

W

P

3

2N

E

S

T

U

O.

e

s

n

e

s

t

u

p

t

u

o

t

c

e

r

i

D

4

24

S

O

.

n

o

i

t

a

r

e

p

o

e

s

a

h

p

3

r

o

2

r

o

f

N

E

S

T

U

O

o

t

t

c

e

n

n

o

C

.

4

t

n

e

r

r

u

C

e

s

n

e

S

-

i

b

m

o

C

(24-Pin TSSOP)

Top View

12

11

6

5

4

3

1

2

10

9

8

7

13

14

19

20

21

22

24

23

15

16

17

18

VID1

VID0

OUT1

OUT2

OUT3

OUT4

OS4

OUTSEN

VID5

PGOOD

OSCREF

AGND

VID2

VID3

GSENSE

ERROUT

BGOUT

OS1

OS3

OS2

VID4

VCC

DACSTEP

FB

Note:

(1) Only available in tape and reel packaging. A reel contains 2500 devices

for the TSSOP-24 package.

(2) Lead free package.Device is fully WEEE and RoHS compliant.

r

e

b

m

u

N

t

r

a

Pe

g

a

k

c

a

PT

(

e

g

n

a

R

.

p

m

e

T

R

T

S

T

X

V

3

4

6

2

C

S

)

1

(

4

2

-

P

O

S

S

T5

2

1

o

t

0

O

C

T

R

T

S

T

X

V

3

4

6

2

C

S

)

2

(

)

1

(

4

2

-

P

O

S

S

T5

2

1

o

t

0

O

C

B

V

E

X

V

3

4

6

2

C

Sd

r

a

o

B

n

o

it

a

u

l

a

v

E