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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearLP3961ESX-3.3
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LP3961ESX-3.3 - Texas Instruments

Manufacturer Part Number
LP3961ESX-3.3
Manufacturer
Texas Instruments
Allelco Part Number
32D-LP3961ESX-3.3
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC REG LIN 3.3V 800MA DDPAK
Package
DDPAK/TO-263-5
Data sheet
-
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In stock: 5600

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Specifications

LP3961ESX-3.3 Tech Specifications
Texas Instruments - LP3961ESX-3.3 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LP3961ESX-3.3

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage Dropout (Max) 0.35V @ 800mA  
Voltage - Output (Min/Fixed) 3.3V  
Voltage - Output (Max) -  
Voltage - Input (Max) 7V  
Supplier Device Package DDPAK/TO-263-5  
Series -  
Protection Features Over Current, Over Temperature, Short Circuit  
Packaging Tape & Reel (TR)  
Package / Case TO-263-6, D²Pak (5 Leads + Tab), TO-263BA  
PSRR -  
Output Type Fixed  
Product Attribute Attribute Value  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C  
Number of Regulators 1  
Mounting Type Surface Mount  
Moisture Sensitivity Level (MSL) 3 (168 Hours)  
Lead Free Status / RoHS Status Contains lead / RoHS non-compliant  
Detailed Description Linear Voltage Regulator IC Positive Fixed 1 Output 3.3V 800mA DDPAK/TO-263-5  
Current - Supply (Max) 15mA  
Current - Quiescent (Iq) 9mA  
Current - Output 800mA  
Control Features Enable  
Base Part Number LP3961  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status Contains lead / RoHS non-compliant

Parts Introduction

Manufacturer Part Number

LP3961ESX-3.3

Manufacturer

texas-instruments

Introduction

The LP3961ESX-3.3 is a high-performance, low-dropout (LDO) linear regulator from Texas Instruments. It provides a regulated 3.3V output voltage from an input voltage of up to 7V. The LDO features excellent line and load regulation, as well as low noise and high PSRR, making it suitable for a wide range of applications.

Product Features and Performance

3V fixed output voltage

Capable of delivering up to 800mA of output current

Low dropout voltage of 0.35V at 800mA

Quiescent current of only 9mA

Maximum supply current of 15mA

Excellent line and load regulation

High power supply rejection ratio (PSRR)

Integrated protection features: overcurrent, over-temperature, and short-circuit protection

Product Advantages

Efficient and reliable power regulation

Compact and easy-to-use surface mount package

Robust protection features for increased reliability

Suitable for a wide range of applications

Key Reasons to Choose This Product

Reliable and high-performance power regulation

Compact and space-saving design

Integrated protection features for increased safety and reliability

Suitable for a wide range of applications, including portable electronics, industrial equipment, and more

Quality and Safety Features

Tested and qualified to meet industry standards

Integrated protection features to ensure safe and reliable operation

Compatibility

The LP3961ESX-3.3 is compatible with a variety of electronic devices and systems that require a 3.3V regulated power supply.

Application Areas

Portable electronics

Industrial equipment

Automotive electronics

Telecommunications equipment

Consumer electronics

Product Lifecycle

The LP3961ESX-3.3 is an obsolete product, meaning it is no longer in active production. However, Texas Instruments may offer equivalent or alternative models that can provide similar functionality. Customers are advised to contact our website's sales team for more information on available options.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LP3961ESX-3.3

Product Attribute LP3961ESX-3.3/NOPB LP3961ES-3.3/NOPB LP3961ES-3.3 LP3961ESX-2.5/NOPB
Part Number LP3961ESX-3.3/NOPB LP3961ES-3.3/NOPB LP3961ES-3.3 LP3961ESX-2.5/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Voltage - Output (Max) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Protection Features - - - -
Series - - - -
PSRR - - - -
Current - Supply (Max) - - - -
Lead Free Status / RoHS Status - - - -
Base Part Number - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Control Features - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Moisture Sensitivity Level (MSL) - - - -
Packaging - - - -
Current - Output - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Output (Min/Fixed) - - - -
Output Configuration - - - -
Number of Regulators - - - -
Voltage - Input (Max) - - - -
Voltage Dropout (Max) - - - -
Current - Quiescent (Iq) - - - -
Detailed Description - - - -

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Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

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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
Texas Instruments

LP3961ESX-3.3

Texas Instruments
32D-LP3961ESX-3.3

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