3-TERMINAL 0.1A POSITIVE ADJUSTABLE REGULATOR

The FR317S/LS/LFB is adjustable 3-terminal positive voltage

regulator capable of supplying in excess of 100mA over a 1.2V

to 37V output range.

This is exceptionally easy to use and require only two external

resistors to set the output voltage.

Further, it employ internal current limiting, thermal

shutdown and safe area compensation.

FEATURES

Adjustable output between 1.2V and 37V

Guaranteed 100mA output current

Line regulation typically 0.01%/V

Load regulation typically 0.1%

80dB ripple rejection (with Cadj)

Internal thermal overload protection

Internal short-circuit current limiting

Output transistor safe-area compensation

BLOCK DIAGRAM

+

-

Protection

Circuitry

Voltage

Reference

1

I

IN

V

Adj

2011. 02. 07

1/5

SEMICONDUCTOR

TECHNICAL DATA

FR317S/LS/LFB

Revision No : 2

SOT-89

G

D

A

C

K

H

F

1

2

3

F

D

1.

2. OUTPUT

3.

FR317LFB

DIM

MILLIMETERS

A

B

D

E

SOT-26

2.9 0.2

1.6+0.2/-0.1

0.70 0.05

0.4 0.1

2.8+0.2/-0.3

1.9 0.2

0.95

0.16 0.05

0.00-0.10

0.25+0.25/-0.15

C

F

G

H

I

J

K

0.60

L

0.55

K

K

B

E

H

J

J

2

3

5

1

6

4

+

_

+

_

+

_

+

_

+

_

FR317LS

ADJUSTABLE

INPUT

1.

2. OUTPUT

3.

ADJUSTABLE

INPUT

4.

5. OUTPUT

6.

NC

NC

+

_

6.5 0.2

+

_

+

_

+

_

A

L

K

G

J

H

D

F

E

B

C

0.26+0.09/-0.02

10 MAX

0.1 MAX

1.75 0.25

3.0+0.15/-0.1

2.3 TYP

7 0.3

0.7+0.15/-0.1

1.8 MAX

3.5 0.2

DIM

MILLIMETERS

H

E

B

J

F

F

G

K

L

C

D

A

1

2

3

SOT-223

1. ADJUSTABLE

2. OUTPUT

3. INPUT

FR317S

DIM

A

B

D

E

G

H

K

4.70 MAX

2.50 0.20

1.70 MAX

0.45+0.15/-0.10

4.25 MAX

1.50 0.10

0.40 TYP

1.7 MAX

0.7 MIN

0.5+0.15/-0.10

C

J

F

MILLIMETERS

+

_

+

_