TS432/A/B

1-7

2003/12 rev. A

TS432/432A/432B

Adjustable Precision Shunt Regulator

Sink Current Capability up to 100mA

General Description

The TS432/432A/432B is a three-terminal adjustable shunt regulator with specified thermal stability. The output voltage

may be set to any value between Vref (approximately 1.24V) and 18V with two external resistors. The TS432/432A/432B

has a typical output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making the

TS432/432A/432B excellent replacement for zener diode in many applications.

This series is offered in 3-pin TO-92, SOT-89, SOT-23 and 5-pin SOT-25 package.

Standard Application

Features

Precision Reference Voltage

TS432

1.24V±2%

TS432A 1.24V±1%

TS432B 1.24V±0.5%

Minimum Cathode Current for regulation: 150uA(typ)

Equivalent Full Range Temp. Coefficient: 50ppm/

Programmable Output Voltage up to 18V

Fast Turn-On Response

Sink Current Capability of 1.0 to 100 mA

Low Dynamic Output Impedance: 0.2

Ω

Low Output Noise

Block Diagram

Ordering Information

Note: Where x denotes voltage tolerance.

Blank: ±2%

A: ±1%

B: ±0.5%

Part No.

Operating Temp.

(Ambient)

Package

TS432xCT

TO-92

TS432xCY

SOT-89

TS432xCX

SOT-23

TS432xCX5

-20 ~ +85

SOT-25

Pin Assignment

Pin No.

TS432/A/BCT

TS432/A/BCY

TS432/A/BCX

TS432/A/BCX5

Pin

Description

1

1

1

4

Reference

2

2

3

5

Anode

3

3

2

3

Cathode

1, 2

Non connect