KSD-I0A003-000

1

A431x

Programmable Voltage Reference

Description

The A431 series are 3-terminal precision shunt regulators that are programmable over a wide voltage range of

2.495V to 16V with ±0.5%, ±1.0% tolerance. The A431 series have a low dynamic impedance of 0.15Ω. These

features make the A431 series an excellent replacement for zener diodes in numerous applications circuits that

require a precision reference voltage.

Features

• Programmable output voltage from 2.495V to 16V

• Voltage reference tolerance : ±0.5%, ±1.0%

• Cathode current capability of 1mA to 100mA

Ordering Information

Type NO.

Marking

Package Code

A431x

A431□

TO-92

　□

: Grade => A:±1% , B:±0.5%

4.40~4.80

0.50 Max.

1.27 Typ.

1.27 Typ.

1

2

3

S

Symbol

PIN Connections

1. Reference

2. Anode

3. Cathode

Functional block diagram

=2.495V

Reference(R)

Cathode(K)

+

-

Anode(A)