LM3940IS-3.3In StockTexas Instruments

TO-263, 3 PIN

OBSOLETEIntegrated CircuitVerified Apr 2026
Package / Visual Reference
LM3940IS-3.3Other
Quick Facts
Manufacturer
Texas Instruments
Package
Other
Pin Count
4
Lifecycle
OBSOLETE
Category
Integrated Circuit
Temp Range
-40.0°C to 125.0°C
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Specifications

Pbfree CodeYes
Date Of Intro1995-01-01
YTEOL0
AdjustabilityFIXED
Dropout Voltage1-Max1V
Dropout Voltage1-Nom0.31V
Input Voltage Absolute-Max7.5V
Input Voltage-Max5.5V
Input Voltage-Min4.5V
JESD-30 CodeR-PSSO-G3
JESD-609 Codee0
Line Regulation-Max0.04%
Load Regulation-Max0.08%
Number of Functions1
Number of Outputs1
Operating Temperature TJ-Max125°C
Operating Temperature TJ-Min-40 °C
Output Current1-Max1A
Output Voltage1-Max3.47V
Output Voltage1-Min3.13V
Output Voltage1-Nom3.3V
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeSMSIP3H,.55TB
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE
Packing MethodTUBE
Peak Reflow Temperature (Cel)235
Qualification StatusNot Qualified
Regulator TypeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Surface MountYES
TechnologyBIPOLAR
Terminal FinishTin/Lead (Sn/Pb)
Terminal FormGULL WING
Terminal Pitch2.54mm
Terminal PositionSINGLE
Time@Peak Reflow Temperature-Max (s)NOT SPECIFIED
Voltage Tolerance-Max5.2%
## LM3940IS-3.3 Alternates Showing resultsImage
PackageOther

Compliance & Regulatory

Moisture Sensitivity LevelMSL 3
ECCNEAR99
HTS Code8542.39.00.60

Datasheet

LM3940IS-3.3 Datasheet Download

Official datasheet from Texas Instruments

Alternate & Equivalent Parts

Compatible alternatives and drop-in replacements for LM3940IS-3.3:

LM3940IS-3.3/NOPBNational Semiconductor Corporation Fixed Positive LDO

Regulator, 3.3V, 1V Dropout, BIPolar, PSSO3

View Part →
LM3940ISX-3.3/NOPBNational Semiconductor Corporation Fixed Positive LDO

Regulator, 3.3V, 1V Dropout, BIPolar, PSSO3

View Part →
LM3940ISX-3.3Texas Instruments

Fixed Positive LDO Regulator, 3.3V, 1V Dropout, BIPolar, PSSO3

View Part →

Frequently Asked Questions

What is the price of LM3940IS-3.3?

LM3940IS-3.3 is priced from competitive USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is LM3940IS-3.3 in stock?

LM3940IS-3.3 is currently available at FindMyChip. We maintain stock from authorized distributors and ship worldwide with typical 3-7 business day lead time.

Where can I buy LM3940IS-3.3?

You can buy LM3940IS-3.3 from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for LM3940IS-3.3 from Texas Instruments.

What is the datasheet for LM3940IS-3.3?

The official LM3940IS-3.3 datasheet from Texas Instruments contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.

What package does LM3940IS-3.3 come in?

LM3940IS-3.3 is available in Other packaging. See the package diagram and pinout above for detailed dimensional information.

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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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Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

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