3

ã 2001 Semtech Corp.

www.semtech.com

SC2982

POWER MANAGEMENT

PRELIMINARY

Notes:

(1) Defined as the input to output differential at which the output voltage drops 100mV below the value measured

at a differential of 1V.

(2) As the load resistance further decreases, the SC2982 folds back the output current to approximately 150mA at

V

Electrical Characteristics

Unless specified: VIN = VO

r

e

t

e

m

a

r

a

Pl

o

b

m

y

Ss

n

o

it

i

d

n

o

C

t

s

e

Tn

i

Mp

y

Tx

a

Ms

ti

n

U

ti

m

i

L

t

n

e

rr

u

C

)

2

(

I

M

I

L

O

V

(

>

O

V

)

M

O

N

(

)

%

5

-

0

0

2

A

m

o

it

a

R

n

o

it

c

e

j

e

R

e

l

p

p

i

RR

R

S

PI

O

C

,

z

H

0

0

1

=

f

,

A

µ

0

0

1

=

P

Y

B

,

F

n

0

1

=

C

O

F

µ

0

1

=

0

5b

d

n

o

it

a

l

u

g

e

R

l

a

m

r

e

h

T

5

0

.

0W

/

%

e

s

i

o

N

t

u

p

t

u

O

S

M

Re

o

n

B

W

I

,

z

H

k

0

5

o

t

z

H

0

0

3

=

O

,

A

m

1

=

C

P

Y

B

C

,

F

n

0

1

=

O

F

µ

0

1

=

0

3s

m

r

V

µ

e

g

a

tl

o

V

t

u

p

n

I

e

l

b

a

n

EV

N

E

F

F

O

P

/

O

=

w

o

L

4

.

0

V

N

O

P

/

O

=

h

g

i

H

8

.

1

V

t

n

e

rr

u

C

t

u

p

n

I

e

l

b

a

n

EI

N

E

V

N

V

4

.

01

0

.

0

-

1

-

A

µ

V

N

V

8

.

15

0

1A

µ

0

2

D

O

P

(%)

V

∆