2

 2002 Semtech Corp.

www.semtech.com

SC1403

PRELIMINARY

POWER MANAGEMENT

PRELIMINARY

Electrical Characteristics

Absolute Maximum Ratings

r

e

t

e

m

a

r

a

Pl

o

b

m

y

Sm

u

m

i

x

a

Ms

t

i

n

U

D

N

G

o

t

+

V

,

e

g

a

tl

o

V

y

l

p

p

u

SV

N

I

0

3

+

o

t

3

.

0

-V

D

N

G

o

t

,

5

T

S

B

,

3

T

S

B

,

s

e

g

a

tl

o

V

t

s

o

o

B

6

3

+

o

t

3

.

0

-V

D

N

G

o

t

D

N

G

P

3

.

0

±V

;

5

E

S

A

H

P

o

t

5

T

S

B

;

3

E

S

A

H

P

o

t

3

T

S

B

D

N

G

o

t

3

H

S

C

,

3

L

S

C

;

D

N

G

o

t

5

H

S

C

,

5

L

S

C

C

D

6

+

o

t

3

.

0

-

S

n

0

0

1

,

t

n

e

i

s

n

a

r

T

7

+

o

t

0

.

2

-

V

,

3

B

F

,

L

V

,

#

T

E

S

E

R

,

5

N

O

,

#

E

V

A

S

P

,

Q

E

S

,

C

N

Y

S

,

F

E

R

D

N

G

o

t

5

P

M

O

C

,

3

P

M

O

C

,

5

B

F

6

+

o

t

V

3

.

0

-V

D

N

G

o

t

#

N

D

H

S

,

3

N

O

)

V

3

.

0

+

+

V

(

o

t

V

3

.

0

-V

D

N

G

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t

t

r

o

h

S

F

E

R

,

L

V

s

u

o

u

n

it

n

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C

t

n

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r

r

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C

F

E

R

5

+A

m

t

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e

r

r

u

C

L

V

0

5

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m

s

d

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s

0

1

)

g

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e

d

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S

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e

r

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t

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r

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p

m

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T

d

a

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LT

D

A

E

L

0

0

3

+C

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g

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a

R

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r

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t

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p

m

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T

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t

ST

G

T

S

0

0

2

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t

5

6

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°

e

g

n

a

R

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t

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p

m

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T

n

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it

c

n

u

JT

J

0

5

1

+C

°

Unless otherwise noted: V+ = 15V, both PWMs on, SYNC = 0V, VL load = 0mA, REF load = 0mA, PSAVE# = 0V, T

T

r

e

t

e

m

a

r

a

Ps

n

o

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t

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d

n

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Cn

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Mp

y

Tx

a

Ms

t

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n

U

S

R

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L

L

O

R

T

N

O

C

S

P

M

S

N

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A

M

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g

n

a

R

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g

a

tl

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V

t

u

p

n

I

0

.

60

.

0

3V

n

i

e

g

a

tl

o

V

t

u

p

t

u

O

V

3

.

3

e

d

o

M

e

l

b

a

t

s

u

j

d

A

,

3

B

F

o

t

d

e

it

3

L

S

C

,

V

0

3

o

t

0

.

6

=

+

V

ti

m

il

t

n

e

r

r

u

c

o

t

A

0

=

d

a

o

L

V

3

5

4

.

25

.

25

5

.

2V

n

i

e

g

a

tl

o

V

t

u

p

t

u

O

V

3

.

3

e

d

o

M

d

e

x

i

F

,

V

0

=

3

B

F

,

V

0

3

o

t

0

.

6

=

+

V

ti

m

il

t

n

e

r

r

u

c

o

t

A

0

=

d

a

o

L

V

3

3

2

.

33

.

37

3

.

3V

n

i

e

g

a

tl

o

V

t

u

p

t

u

O

V

5

e

d

o

M

e

l

b

a

t

s

u

j

d

A

,

5

B

F

o

t

d

e

it

5

L

S

C

,

V

0

3

o

t

0

.

6

=

+

V

ti

m

il

t

n

e

r

r

u

c

o

t

A

0

=

d

a

o

L

V

5

5

4

.

25

.

25

5

.

2V

n

i

e

g

a

tl

o

V

t

u

p

t

u

O

V

5

e

d

o

M

d

e

x

i

F

,

V

0

=

5

B

F

,

V

0

3

o

t

0

.

6

=

+

V

ti

m

il

t

n

e

r

r

u

c

o

t

A

0

=

d

a

o

L

V

5

9

.

40

.

51

.

5V

e

g

n

a

R

t

s

u

j

d

A

e

g

a

tl

o

V

t

u

p

t

u

OS

P

M

S

r

e

h

ti

EF

E

R5

.

5V

d

l

o

h

s

e

r

h

T

e

d

o

M

e

l

b

a

t

s

u

j

d

A

e

g

a

tl

o

V

5

.

08

.

01

.

1V

n

o

it

a

l

u

g

e

R

d

a

o

L

ti

m

il

t

n

e

r

r

u

c

o

t

A

0

,

S

P

M

S

r

e

h

ti

E4

.

0

-%

n

o

it

a

l

u

g

e

R

e

n

i

L

V

=

#

E

V

A

S

P

;

0

3

<

+

V

<

V

0

.

6

,

S

P

M

S

r

e

h

ti

E

L

5

0

.

0V

/

%

Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters

specified in the Electrical Characteristics section is not implied.