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LM431AIM3X/NOPB

Description
2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator 3-SOT-23 -40 to 85
CategoryPower/power management    The power supply circuit   
File Size2MB,38 Pages
ManufacturerPulse Electronics Power
Environmental Compliance
Download Datasheet Parametric View All

LM431AIM3X/NOPB Overview

2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator 3-SOT-23 -40 to 85

LM431AIM3X/NOPB Parametric

Parameter NameAttribute value
Brand NameTexas Instruments
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerPulse Electronics Power
Parts packaging codeSOT-23
package instructionSOT-23, 3 PIN
Contacts3
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time12 weeks
Is SamacsysN
Other featuresOUTPUT VOLTAGE ADJUSTABLE FROM 2.495 TO 36V WITH TWO EXTERNAL RESISTORS
Analog Integrated Circuits - Other TypesTWO TERMINAL VOLTAGE REFERENCE
JESD-30 codeR-PDSO-G3
JESD-609 codee3
length2.92 mm
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals3
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.1 A
Maximum output voltage2.55 V
Minimum output voltage2.44 V
Nominal output voltage2.495 V
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTO-236
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.12 mm
Maximum supply voltage (Vsup)37 V
Minimum supply voltage (Vsup)2.44 V
surface mountYES
technologyBIPOLAR
Maximum voltage temperature coefficient97 ppm/°C
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
Fine-tuning/adjustable outputYES
width1.3 mm
Base Number Matches1
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LM431
SNVS020H – MAY 2000 – REVISED JANUARY 2016
LM431 Adjustable Precision Zener Shunt Regulator
1 Features
1
3 Description
The LM431 is a 3-terminal adjustable shunt regulator
with ensured temperature stability over the entire
temperature range of operation. The output voltage
may be set at any level greater than 2.5 V (V
REF
) up
to 36 V merely by selecting two external resistors that
act as a voltage divided network. Due to the sharp
turnon characteristics this device is an excellent
replacement for many Zener diode applications.
The LM431 is available in space-saving SOIC-8,
SOT-23, and TO-92 packages.
Device Information
(1)
PART NUMBER
LM431
PACKAGE
SOIC (8)
SOT-23 (3)
TO-92 (3)
BODY SIZE (NOM)
4.90 mm × 3.91 mm
2.92 mm × 1.30 mm
4.30 mm × 4.30 mm
Average Temperature Coefficient 50 ppm/°C
Temperature Compensated for Operation Over
the Full Temperature Range
Programmable Output Voltage
Fast Turnon Response
Low-Output Noise
Low-Dynamic Output Impedance
Available in Space-Saving SOIC-8, SOT-23, and
TO-92 Packages
2 Applications
Adjustable Voltage or Current Linear and
Switching Power Supplies
Voltage Monitoring
Current Source and Sink Circuits
Circuits Requiring Precision References
Zener Diode Replacements
LM431 Symbol
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Block Diagram
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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