SPX3940AT-L-3-3/TR is available for purchase but is not normally stocked.
Available Substitutes:

Parametric Equivalent

SPX3940T-L-3-3/TR
MaxLinear, Inc.
In Stock: 0
Unit Price: $2.67000
Datasheet

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LM3940IS-3.3/NOPB
Texas Instruments
In Stock: 0
Unit Price: $3.67000
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LM3940ISX-3.3/NOPB
Texas Instruments
In Stock: 0
Unit Price: $2.97000
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MIC29310-3.3WU
Microchip Technology
In Stock: 0
Unit Price: $5.17000
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MIC29310-3.3WU-TR
Microchip Technology
In Stock: 0
Unit Price: $5.17000
Datasheet

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MIC5237-3.3YU
Microchip Technology
In Stock: 0
Unit Price: $3.18000
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MIC5237-3.3YU-TR
Microchip Technology
In Stock: 0
Unit Price: $2.56295
Datasheet
View and Compare All Substitutes
TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

SPX3940AT-L-3-3/TR

DigiKey Part Number
SPX3940AT-L-3-3/TR-ND - Tape & Reel (TR)
Manufacturer
MaxLinear, Inc.
Manufacturer Product Number
SPX3940AT-L-3-3/TR
Description
IC REG LINEAR 3.3V 1A TO263-3
Manufacturer Standard Lead Time
8 Weeks
Customer Reference
Detailed Description
Linear Voltage Regulator IC Positive Fixed 1 Output 1A TO-263-3
Datasheet
 Datasheet
EDA/CAD Models
SPX3940AT-L-3-3/TR Models
Product Attributes
Type
Description
Select All
Category
Mfr
MaxLinear, Inc.
Series
-
Packaging
Tape & Reel (TR)
Part Status
Active
Output Configuration
Positive
Output Type
Fixed
Number of Regulators
1
Voltage - Input (Max)
16V
Voltage - Output (Min/Fixed)
3.3V
Voltage - Output (Max)
-
Voltage Dropout (Max)
0.55V @ 1A
Current - Output
1A
PSRR
-
Control Features
-
Protection Features
Over Current, Over Temperature, Reverse Polarity, Short Circuit, Transient Voltage
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Supplier Device Package
TO-263-3
Base Product Number
SPX3940
Product Questions and Answers

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Available To Order
Check Lead Time
Quantity
All prices are in CAD
Tape & Reel (TR)
QuantityUnit PriceExt Price
500$1.39188$695.94
1,000$1.34677$1,346.77
1,500$1.32417$1,986.26
2,500$1.29912$3,247.80
3,500$1.28449$4,495.71
5,000$1.27042$6,352.10
12,500$1.24011$15,501.38
Manufacturers Standard Package