TS432 Datasheet, PDF (1/7 Pages) STMicroelectronics – 1.24V ADJUSTABLE SHUNT VOLTAGE REFERENCE

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.
Features
Standard Application
— 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/ ^oC
— Programmable Output Voltage up to 18V
— Fast Turn-On Response
— Sink Current Capability of 1.0 to 100 mA
— Low Dynamic Output Impedance: 0.2Ω
— Low Output Noise
Ordering Information
Block Diagram
Pin Assignment
Part No.
Operating Temp. Package
(Ambient)
TS432xCT
TS432xCY
-20 ~ +85 ^oC
TO-92
SOT-89
TS432xCX
SOT-23
TS432xCX5
Note: Where x denotes voltage tolerance.
Blank: ±2%
A: ±1%
B: ±0.5%
SOT-25
TS432/A/BCT
1
2
3
Pin No.
TS432/A/BCY
1
2
3
TS432/A/BCX
1
3
2
TS432/A/BCX5
4
5
3
1, 2
Pin
Description
Reference
Anode
Cathode
Non connect
TS432/A/B
1-7
2003/12 rev. A