2023.10.30

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Revision No : 26

PROGRAMMABLE PRECISION REFERENCES

The KIA431 Series 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 Vref

to 36 volts with two external resistors. These devices exhibit a wide operating current range of 1.0 to 100mA with a

typical dynamic impedance of 0.22 .The characteristics of these references make them excellent 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 KIA431 Series

operates as a shunt regulator, it can be used as either a positive or negative voltage reference.

FEATURES

Divice Code Name :KIA431 + Vref Code + Package Code+Pin Configuration Code

Low Dynamic Output Impedance : 0.22 (Typ.).

Sink Current Capability of 1.0 to 100mA.

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

Temperature Compensated for Operation Over Full Rated Operating Temperature Range.

Low Output Noise Voltage.

Suffix U : Qualified to AEC-Q100. (Grade 1)

ex ) KIA431*M-RTK/HU

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SEMICONDUCTOR

TECHNICAL DATA

KIA431 Series

BIPOLAR LINEAR INTEGRATED CIRCUIT

ITEM

Vref Code

Package Code

KIA431

Code

Tolerance (%)

Code

Package

Blank

TO-92

F

SOT-89

A

1.0

M

SOT-23

B

0.5

PIN CONFIGURATION (SOT-23)

1. Cathode 2. Reference 3. Anode

3

3

2

2

1

1

TOP

VIEW

Type No.

Operating Voltage(V)

Package

Marking

2.5 ~ 36

TO-92

KIA431A

KIA431B

SOT-89

KIA431AF

3B

KIA431BF

3C

SOT-23

KIA431AM

43A

KIA431BM

43B