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AVANTICS - AX431 Series

Specification No.: 050308-FE0001

AX431 Series

Adjustable Shunt Regulator

Description

The AX431 series are three-terminal adjustable regulators with guarante-

ed thermal stability over applicable temperature ranges. The output

voltage may be set to any value between V

and 36 volts with two external resistors. These devices have a typical

dynamic output impedance of 0.2

Ω. Active output circuitry provides a very

sharp turn-on characteristic, making these devices excellent replacement

for zener diodes in many applications.

Features

• Programmable output voltage

• Temperature compensated for operation over full temperature range

• Low output noise voltage

• Fast turn on response

Ordering Information

Package

V

±2%

V

±1%

V

±0.5%

SOT-23

AX431AN

AX431BN

AX431CN

SOT-89

AX431AM

AX431BM

AX431CM

TO-92

AX431AA

AX431BA

AX431CA

SO-8

AX431AS

AX431BS

AX431CS

Absolute Maximum Ratings

(Operating temperature range applies unless otherwise specified)

Characteristics

Symbol

Value

Unit

Cathode Voltage

V

KA

36

V

Cathode Current Range (Continuous)

I

K

-100~+150

mA

Reference Input Current Range

I

REF

0.05~+10

mA

SOT-23

280

SOT-89

770

TO-92

770

Power Dissipation

P

D

SO-8

770

mW

Operating Temperature Range

T

opr

0~+70

o

C

Storage Temperature Range

T

stg

-65~+150

o

C

Operating Conditions

Characteristics

Symbol

Min.

Max.

Unit

Cathode Voltage

V

KA

V

REF

36

V

Cathode Current Range (Continuous)

I

K

1

100

mA

AX431 Series Pin Assignment

3-Lead Plastic SO-8

Package Code: S

Pin 1: Cathode

Pin 2/3/6/7: Anode

Pin 4/5: NC

Pin 8: Reference

5

1

2

3

•

4

6

7

8

3-Lead Plastic SOT-89

Package Code: M

Pin 1: Reference

Pin 2: Anode

Pin 3: Cathode

3-Lead Plastic SOT-23

Package Code: N

Pin 1: Reference

Pin 2: Cathode

Pin 3: Anode

1 2

3

3-Lead Plastic TO-92

Package Code: A

Pin 1: Reference

Pin 2: Anode

Pin 3: Cathode

1 2

3

1 2

3