View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearLM3940IMPX-3.3
LM3940IMPX-3.3 Image
Image may be representation.
See specifications for product details.
EXPRESS OPTION
Payment method

LM3940IMPX-3.3 - Texas Instruments

Manufacturer Part Number
LM3940IMPX-3.3
Manufacturer
Texas Instruments
Allelco Part Number
32D-LM3940IMPX-3.3
ECAD Model
Parts Description
IC REG LINEAR 3.3V 1A SOT223-4
Package
TO-261-4, TO-261AA
Data sheet
LM3940IMPX-3.3.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 28777

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity
EXPRESS OPTION
Payment method
Our certification

Specifications

LM3940IMPX-3.3 Tech Specifications
Texas Instruments - LM3940IMPX-3.3 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LM3940IMPX-3.3

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage Dropout (Max) 0.2V @ 100mA  
Voltage - Output (Min/Fixed) 3.3V  
Voltage - Output (Max) -  
Voltage - Input (Max) 7.5V  
Supplier Device Package SOT-223-4  
Series -  
Protection Features Over Temperature, Short Circuit  
Package / Case TO-261-4, TO-261AA  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
PSRR -  
Output Type Fixed  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C  
Number of Regulators 1  
Mounting Type Surface Mount  
Current - Output 1A  
Control Features -  
Base Product Number LM3940  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

LM3940IMPX-3.3

Manufacturer

Texas Instruments

Introduction

The LM3940IMPX-3.3 is a low dropout (LDO) voltage regulator specifically designed for power management applications, supporting a maximum input voltage of 7.5V and offering a stable output voltage of 3.3V.

Product Features and Performance

Positive fixed output configuration

Low dropout voltage of 0.2V at 100mA load

Maximum output current of 1A

Over temperature and short circuit protection

Designed for surface mount technology with SOT-223-4 package

Product Advantages

High efficiency due to low dropout voltage

Robust protection features enhance device reliability

Compact SOT-223-4 package ideal for space-constrained applications

Key Technical Parameters

Voltage Input (Max): 7.5V

Voltage Output (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.2V @ 100mA

Current Output: 1A

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Over temperature protection

Short circuit protection

Compatibility

Compatible with high input voltage up to 7.5V applications

Application Areas

Portable electronics

Embedded systems

Power supply circuits

Product Lifecycle

Status: Last Time Buy

Note: Check for replacement or upgraded models as this part is nearing discontinuation.

Several Key Reasons to Choose This Product

Offers stable 3.3V output with high efficiency

Supports a wide range of operating temperatures, making it suitable for challenging environments

Low dropout feature is ideal for applications with tight voltage requirements

Comprehensive protection features ensure long-term reliability and safety

Compact and suitable for limited space applications

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LM3940IMPX-3.3

Product Attribute LM3940IMPX-3.3 LM3940IS-3.3 LM3940IMP-3.3 LM3940ISX-3.3
Part Number LM3940IMPX-3.3 LM3940IS-3.3 LM3940IMP-3.3 LM3940ISX-3.3
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Voltage Dropout (Max) 0.2V @ 100mA 0.2V @ 100mA 0.2V @ 100mA 0.2V @ 100mA
Series - - - -
Voltage - Input (Max) 7.5V 7.5V 7.5V 7.5V
Output Type Fixed Fixed Fixed Fixed
Voltage - Output (Min/Fixed) 3.3V 3.3V 3.3V 3.3V
Protection Features Over Temperature, Short Circuit Over Temperature, Short Circuit Over Temperature, Short Circuit Over Temperature, Short Circuit
Output Configuration Positive Positive Positive Positive
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Package / Case TO-261-4, TO-261AA TO-263-4, D²Pak (3 Leads + Tab), TO-263AA TO-261-4, TO-261AA TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Base Product Number LM3940 LM3940 LM3940 LM3940
Package Tape & Reel (TR) Tube Tape & Reel (TR) Tape & Reel (TR)
Voltage - Output (Max) - - - -
Current - Output 1A 1A 1A 1A
Control Features - - - -
PSRR - - - -
Supplier Device Package SOT-223-4 DDPAK/TO-263-3 SOT-223-4 DDPAK/TO-263-3
Number of Regulators 1 1 1 1

LM3940IMPX-3.3 Datasheet PDF

Download LM3940IMPX-3.3 pdf datasheets and Texas Instruments documentation for LM3940IMPX-3.3 - Texas Instruments.

PCN Assembly/Origin
2.73KHz.pdf
PCN Design/Specification
Wire Base Metal 05/Oct/2016.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

View More
LM3940IMPX-3.3 Image

LM3940IMPX-3.3

Texas Instruments
32D-LM3940IMPX-3.3

Want a better price? Please Add to Cart, we'll contact you immediately.

0 RFQ
Shopping cart (0 Items)
It is empty.
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB