TS431 Datasheet, PDF (1/14 Pages) STMicroelectronics – LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE

TS431
Low voltage adjustable shunt reference
Features
■ Low voltage operation: 1.24 to 6V
■ 2%, 1% and 0.5% voltage precision
■ Wide operating range cathode current: 60µA to
30mA
■ Low output impedance: 0.2Ω
■ Typically stable for any capacitive loads
■ ESD protection:
■ Human body model: 2kV
■ Machine model: 200V
■ 100ppm/°C temperature coefficient
Z
TO-92
(Plastic Package)
L
SOT23-5
(Plastic Micropackage)
Description
The TS431 is a low-voltage, three-terminal,
programmable shunt voltage reference.
The output voltage can be set to any value
between V_ref (1.24V) and 6V with two external
resistors.
The TS431 is able to operate at a lower voltage
(1.24V) and lower cathode current than the widely
used TL431 and TL1431 shunt voltage reference.
When driving an optocoupler, the TS431 is
particularly useful for regulating 3.3V switching
power supplies.
Part number
Temperature range
Package
Packing
Marking
TS431ILT
TS431AILT
TS431AIYLT⁽¹⁾
TS431BILT
TS431BIYLT⁽¹⁾
TS431IYLT⁽¹⁾
TS431IZ/IZT/IZ-AP
TS431AIZ/AIZT/AIZ-AP
TS431BIZ/BIZT/BIZ-AP
-40, + 125°C
SOT23-5
SOT23-5
(automotive grade level)
SOT23-5
SOT23-5
(automotive grade level)
SOT23-5
(automotive grade level)
TO-92
Tape & reel
L272
L271
L276
L270
L273
Bulk (Z),
Tape & reel (ZT) or Ammo
pack (AP)
L274
TS431I
TS431AI
TS431BI
1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001
& Q 002 or equivalent.
October 2006
Rev 4
1/14
www.st.com
14