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ZTLV431

1.24V shunt regulator

Datasheet

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Description

The ZTLV431 is a three terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 20mA. The output voltage may be set to any chosen voltage between 1.24 volts and 10 volts by selection of two external divider resistors. The ZTLV431 can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance. The ZTLV431 is available as standard as an A grade which has an initial tolerance of 1% and covers the -40°C to 125°C temperature range as standard.

Feature(s)

Low voltage operation V_REF = 1.24V

Temperature range -40 to 125°C

Reference voltage tolerance at 25°C

1% ZTLV431A

Typical temperature drift

4 mV (0°C to 70°C)

6 mV (-40°C to 85°C)

11mV (-40°C to 125°C)

100μA minimum cathode current

0.25Ω typical output impedance

Adjustable output voltage 1.24V to 10V

Application(s)

Opto-coupler linearization

Linear regulators

Improved Zener

Variable reference

Product Specifications

Product Parameters

Type	Shunt regulator
Compliance (Only Automotive supports PPAP)	Standard
AEC Qualified	No
ReferenceVoltage (V)	1.24 V
Tolerance (%)	1 %
Maximum Input Voltage (V)	10 V
Sink Current (mA)	15 mA
Minimum Cathode Current for Regulation Typ (µA)	55 µA
Typical Temperature Coefficient (ppm/°C)	55 ppm/°C
Maximum Slope Resistance (Ω)	0.4 Ω
Operating Ambient Temperature Range (°C)	-40 to 125 °C

Technical Documents

ICP Reports

SOT23epICP.pdf (1.5 MB)

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2642	2023-09-05	2024-03-05	Device End of Life (EOL)