3

 2004 Semtech Corp.

www.semtech.com

SC4205

POWER MANAGEMENT

Notes:

(1) Low duty cycle pulse testing with Kelvin connections required.

(2) Defined as the input to output differential at which the output voltage drops to 1% below the value

measured at a differential of 0.7V.

(3) Required to maintain regulation. Voltage set resistors R1 and R2 are usually utilized to meet this

requirement. Adjustable versions only.

(4) Guaranteed by design.

(5) When V

the error amplifier and connects V

r

e

t

e

m

a

r

a

Pl

o

b

m

y

Ss

n

o

i

t

i

d

n

o

C

t

s

e

Tn

i

Mp

y

Tx

a

Ms

t

i

n

U

)

.

t

n

o

C

(

O

V

t

n

e

r

r

u

C

d

a

o

L

m

u

m

i

n

i

M

)

3

(

I

O

1

0

1

A

µ

ti

m

i

L

t

n

e

r

r

u

CI

L

C

6

.

1

3

3

.

1

5

.

3

A

J

D

A

e

g

a

tl

o

V

e

c

n

e

r

e

f

e

R

)

1

(

V

F

E

R

V

N

I

V

,

V

2

.

2

=

J

D

A

V

=

T

U

O

I

,

O

A

m

0

1

=8

8

1

.

10

0

2

.

12

1

2

.

1V

6

7

1

.

14

2

2

.

1

t

n

e

r

r

u

C

n

i

P

t

s

u

j

d

A

)

4

(

I

J

D

A

V

J

D

A

V

=

F

E

R

0

3

0

0

2

A

n

d

l

o

h

s

e

r

h

T

n

i

P

t

s

u

j

d

A

)

5

(

V

)

J

D

A

(

H

T

5

0

.

0

0

2

.

0

0

4

.

0

V

N

E

t

n

e

r

r

u

C

n

i

P

e

l

b

a

n

EI

N

E

V

N

E

V

,

V

0

=

N

I

V

3

.

3

=5

.

1

0

1

A

µ

d

l

o

h

s

e

r

h

T

n

i

P

e

l

b

a

n

EV

H

I

V

N

I

V

3

.

3

=

6

.

1

V

V

L

I

V

N

I

V

3

.

3

=

4

.

0

n

o

i

t

c

e

t

o

r

P

e

r

u

t

a

r

e

p

m

e

T

r

e

v

O

l

e

v

e

l

p

ir

T

h

g

i

HT

I

H

0

7

1C

°

s

i

s

e

r

e

t

s

y

HT

T

S

Y

H

0

2C

°

Electrical Characteristics (Cont.)

Unless specified: V

Fixed Options (V