TS431-Z

Adjustable Precision Shunt Regulator

1/10

Version: B11

SOT-23

General Description

TS431 integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage

external resistors. These devices exhibit a wide operating current range to 250mA with a typical dynamic

impedance of 0.2

Ω. 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 2.495V reference makes it

convenient to obtain a stable reference from 5.0V logic supplies, and since The TS431 operates as a shunt

regulator, it can be used as either a positive or negative stage reference

.

Features

●

Programmable Output Voltage up to 36V

●

Fast Turn-On Response

●

Sink Current Capability: 200mA

●

Low Dynamic Output Impedance: 0.2

(Typ)

●

Min. Operating Cathode Current: 0.2mA (Typ)

●

Halogen Free

Ordering Information

Part No.

Package

Packing

TS431ACX-Z RFG

SOT-23

3Kpcs / 7” Reel

TS431BCX-Z RFG

SOT-23

3Kpcs / 7” Reel

“G” denotes for Halogen free products

Block Diagram

Parameter

Symbol

Limit

Unit

Cathode Voltage

36

V

Continuous Cathode Current Range

+250

mA

Reference Input Current Range

10

mA

Power Dissipation

0.25

W

Operating Temperature Range

-20 ~ +85

Junction Temperature

-40 ~ +125

Storage Temperature Range

-40 ~ +125

Thermal Resistance Junction to Ambient

Ө

JA

156

Pin Definition:

1. Reference

2. Cathode

3. Anode