LM4040D20IDCKRE4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock

The LM4040D20IDCKRE4 is a precision micropower shunt voltage reference from Texas Instruments with a nominal output of 2.048 V and 1% accuracy. It features an output voltage range of 2.028 V to 2.068 V in a compact SOT-23 5-pin package. Available from stock worldwide with fast shipping.

OBSOLETEIntegrated CircuitVerified May 2026
Package / Visual Reference
LM4040D20IDCKRE4SOT23 (5-Pin)
Quick Facts
Manufacturer
Texas Instruments
Package
SOT23 (5-Pin)
Pin Count
5
Lifecycle
OBSOLETE
Category
Integrated Circuit
Temp Range
-40.0°C to 85.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

What are the key features of LM4040D20IDCKRE4?

  • Precision 2.048 V nominal output voltage with tight 1% accuracy tolerance for reliable reference applications
  • Ultra-low micropower consumption ideal for battery-operated and energy-sensitive circuit designs
  • Compact SOT-23 5-pin two-terminal shunt configuration minimizing BOM complexity and PCB area
  • Output voltage range of 2.028 V to 2.068 V ensures consistent performance across manufacturing variations

What is LM4040D20IDCKRE4 used for?

The LM4040D20IDCKRE4 is designed for precision analog circuits requiring a stable 2.048 V reference, including ADC and DAC voltage references, sensor signal conditioning, and portable instrumentation. Its micropower shunt topology makes it an excellent choice for battery-powered devices and always-on monitoring systems. The compact SOT-23 package and two-terminal simplicity further reduce design complexity in space-constrained applications.

What are the specifications of LM4040D20IDCKRE4?

YTEOL0
Analog IC - Other TypeTWO TERMINAL VOLTAGE REFERENCE
JESD-30 CodeR-PDSO-G5
JESD-609 Codee4
Number of Functions1
Number of Outputs1
Output Voltage-Max2.068V
Output Voltage-Min2.028V
Output Voltage-Nom2.048V
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeTSSOP5/6,.08
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)260
Qualification StatusNot Qualified
Supply Voltage-Nom (Vsup)5V
Surface MountYES
TechnologyBIPOLAR
Temp Coef of Voltage-Max150ppm/°C
Temperature GradeINDUSTRIAL
Terminal FinishNICKEL PALLADIUM GOLD
Terminal FormGULL WING
Terminal Pitch0.65mm
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)30
Trim/Adjustable OutputNO
Voltage Tolerance-Max1%
PackageSOT23 (5-Pin)

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.39.00.60

Where can I find the LM4040D20IDCKRE4 datasheet?

LM4040D20IDCKRE4 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM4040D20IDCKRE4?

Compatible alternatives and drop-in replacements for LM4040D20IDCKRE4:

LM4040D20IDCKRTexas Instruments Two Terminal

Voltage Reference, 1 Output, 2.048V, BIPolar, PDSO5

View Part →
LM4040D20IDBZRG4Texas Instruments

Two Terminal Voltage Reference, 1 Output, 2.048V, BIPolar, PDSO3

View Part →
LM4040D20IDBZRTexas Instruments

Two Terminal Voltage Reference, 1 Output, 2.048V, BIPolar, PDSO3

View Part →
LM4040D20IDBZTTexas Instruments

Two Terminal Voltage Reference, 1 Output, 2.048V, BIPolar, PDSO3

View Part →
LM4040D20QDBZTTexas Instruments

Two Terminal Voltage Reference, 1 Output, 2.048V, BIPolar, PDSO3

View Part →
LM4040DEM3-2.0Texas Instruments

Two Terminal Voltage Reference, 1 Output, 2.048V, BIPolar, PDSO3

View Part →

Frequently Asked Questions

What is the output voltage of the LM4040D20IDCKRE4?

The LM4040D20IDCKRE4 provides a nominal output voltage of 2.048 V, with a specified range of 2.028 V minimum to 2.068 V maximum, offering 1% accuracy for precision reference applications.

What package does the LM4040D20IDCKRE4 come in?

This part is available in a SOT-23 5-pin package, making it one of the smallest available form factors for a precision shunt voltage reference, ideal for space-constrained PCB designs.

What are the typical applications for the LM4040D20IDCKRE4?

Common applications include ADC and DAC reference voltage sources, precision analog-to-digital conversion circuits, portable instrumentation, sensor interfaces, and battery-powered devices where a stable low-voltage reference is required.

Is the LM4040D20IDCKRE4 a shunt or series voltage reference?

The LM4040D20IDCKRE4 is a two-terminal shunt voltage reference, meaning it regulates voltage in parallel with the load, similar to a Zener diode but with far greater precision at 2.048 V nominal output.

Is the LM4040D20IDCKRE4 RoHS compliant?

Yes, the 'E4' suffix in the part number indicates JEDEC JESD-609 compliance (e4 code), confirming the device is RoHS compliant and lead-free, suitable for environmentally regulated production environments.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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