PROGRAMMABLE PRECISION REFERENCES

The FA431Z/ZS/ZF integrated circuits are three-terminal

programmable shunt regulator diodes.

These monolithic IC voltage reference operate as a low

temperature coefficient zener which is programmable from

with a typical dynamic impedance of 0.2Ω .

replacements for zener diodes in many applications

such as digital voltmeters, power supplies, and op amp circuitry.

The 2.5 volt reference makes it convenient to obtain a stable reference

from 5.0 volt logic supplies, and since the

FA431 Series operates as a shunt regulator,

it can be used as either a positive or negative voltage reference.

FEATURES

Low Dynamic Output Impedance : 0.2Ω (Typ.).

Sink Current Capability of 1.0 to 100mA.

Equivalent Full-Range Temperature Coefficient of 50ppm/℃ (Typ.).

Low Output Noise Voltage.

ITEM

Package Code

FA431

Code

Tolerance (%)

Code

Package

±2.0

TO-92

A

±1.0

F

SOT-89

C

±0.5

S

SOT-23

These devices exhibit a wide operating current range of 1.0 to 100mA

The characteristics of these references make them excellent

2012. 05. 02

1/5

SEMICONDUCTOR

TECHNICAL DATA

FA431Z/ZS/ZF

Revision No : 4

DIM

MILLIMETERS

A

B

C

D

E

2.93 0.20

1.30+0.20/-0.15

0.45

2.40+0.30/-0.20

G

1.90

H

J

K

L

M

N

0.95

0.13+0.10/-0.05

0.00 ~ 0.10

0.55

0.20 MIN

1.00+0.20/-0.10

M

E

3

1

2

B

1.30 MAX

L

L

P

P

P

7

+

_

SOT-23

1. REFERENCE

2. ANODE

3. CATHODE

Temperature Compensated for Operation Over Full Rated Operating

Temperature Range.

TO-92

DIM

MILLIMETERS

A

B

C

D

F

G

H

J

L

4.70 MAX

4.80 MAX

3.70 MAX

1.00

1.27

0.85

0.45

14.00 0.50

2.30

D

1

2

3

B

G

H

F

F

E

C

E

0.51 MAX

M

+

_

0.55 MAX

SOT-89

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

G

D

A

C

K

F

MILLIMETERS

H

F

1

2

3

F

D

+

_

+

_

1. REFERENCE

2. ANODE

3. CATHODE

1. REFERENCE

2. ANODE

3. CATHODE

LINE UP

Type No.

Operating Voltage(V)

Package

FA431Z

2.5~36

TO-92

FA431ZA

FA431ZC

FA431ZF

SOT-89

FA431ZAF

FA431ZCF

FA431ZS

2.5~36

SOT-23

FA431ZAS

FA431ZCS

FA431ACS

Mark

RA3

RA2

compliance with RoHS requirements.

We declare that the material of product