SC431CSK-.5TRT datasheet(3/9 Pages) SEMTECH

Part #	SC431CSK-.5TRT

Description	Adjustable Shunt Regulator

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Manufacturer	SEMTECH [Semtech Corporation]

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 2008 Semtech Corp.

www.semtech.com

POWER MANAGEMENT

SC431

Test Circuit 3

Off-State

Test Circuit 2

V

Z > VREF

Test Circuit 1

V

Z = VREF

Electrical Characteristics (Cont.)

2

-

x

C

1

3

4

C

S

r

e

t

e

m

a

r

a

Pl

o

b

m

y

Sn

o

i

t

i

d

n

o

Cn

i

Mp

y

Tx

a

Ms

t

i

n

U

e

g

a

tl

o

V

e

c

n

e

r

e

f

e

RV

F

E

R

V

Z

V

=

F

E

R

I

,

Z

A

m

0

1

=

)

1

(

5

4

.

25

9

4

.

25

4

5

.

2V

V

F

E

R

n

o

it

a

i

v

e

D

p

m

e

TV

V

E

D

V

Z

V

=

F

E

R

,I

Z

A

m

0

1

=

)

1

(

5

10

3

V

m

V

n

i

e

g

n

a

h

C

f

o

it

a

R

F

E

R

o

tI

Z

,

A

m

0

1

=

∆V

Z

V

o

t

V

0

1

=

F

E

R

5

.

0

-7

.

2

-V

/

V

m

V

n

i

e

g

n

a

h

C

Z

I

Z

,

A

m

0

1

=

∆V

Z

V

0

1

o

t

V

0

3

=0

.

1

-0

.

2

-

t

n

e

r

u

C

t

u

p

n

I

e

c

n

e

r

e

f

e

RI

F

E

R

k

0

1

=

1

R

Ω

=

2

R

,

∞ I

,

Z

A

m

0

1

=

)

2

(

5

.

04

A

µ

I

F

E

R

n

o

it

a

i

v

e

D

e

r

u

t

a

r

e

p

m

e

TI

)

V

E

D

(

F

E

R

k

0

1

=

1

R

Ω

=

2

R

,

∞,I

Z

A

m

0

1

=

)

2

(

4

.

02

.

1

A

µ

t

n

e

r

u

C

e

d

o

h

t

a

C

e

t

a

t

S

-

ff

OI

)

F

O

(

Z

V

F

E

R

V

,

V

0

=

Z

V

0

3

=

)

3

(

4

0

.

00

5

.

0A

µ

e

c

n

a

d

e

p

m

I

t

u

p

t

u

O

c

i

m

a

n

y

Dr

Z

V

,

z

H

k

1

<

f

Z

V

=

F

E

R

I

,

Z

A

m

0

1

o

t

A

µ

0

3

1

=

)

1

(

5

2

.

00

5

.

0

Ω

t

n

e

r

u

C

g

n

it

a

r

e

p

O

m

u

m

i

n

i

MI

)

N

I

M

(

Z

V

Z

V

=

F

E

R

)

1

(

0

3

1A

µ

Z

REF

V

∆

Unless specified:T

A = 25°C. Values in bold apply over full operating ambient temperature range.

Notes:

(1) See Test Circuit 1 below.

(2) See Test Circuit 2 below.

(3) See Test Circuit 3 below.

n

i

Mx

a

Ml

o

b

m

y

S

V

,

e

g

a

tl

o

V

e

d

o

h

t

a

C

Z

V

F

E

R

0

3V

I

,t

n

e

r

u

C

e

d

o

h

t

a

C

Z

0

3

1

.

00

5

1A

m

Test Circuits

Recommended Operating Conditions

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