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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearLP2981-33DBVT
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LP2981-33DBVT - Texas Instruments

Manufacturer Part Number
LP2981-33DBVT
Manufacturer
Texas Instruments
Allelco Part Number
32D-LP2981-33DBVT
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC REG LINEAR 3.3V 100MA SOT23-5
Package
SOT-23-5
Data sheet
1.LP2981-33DBVT.pdf ...
RoHs Status
ROHS3 Compliant
Our certification
In stock: 42450

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Specifications

LP2981-33DBVT Tech Specifications
Texas Instruments - LP2981-33DBVT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LP2981-33DBVT

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage Dropout (Max) 0.37V @ 100mA  
Voltage - Output (Min/Fixed) 3.3V  
Voltage - Output (Max) -  
Voltage - Input (Max) 16V  
Supplier Device Package SOT-23-5  
Series -  
Protection Features Over Current, Over Temperature, Short Circuit  
Package / Case SC-74A, SOT-753  
Package Tape & Reel (TR)  
PSRR 63dB (1kHz)  
Product Attribute Attribute Value  
Output Type Fixed  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C  
Number of Regulators 1  
Mounting Type Surface Mount  
Current - Supply (Max) 1.7 mA  
Current - Quiescent (Iq) 95 µA  
Current - Output 100mA  
Control Features Enable  
Base Product Number LP2981  

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

LP2981-33DBVT

Manufacturer

Texas Instruments

Introduction

The LP2981-33DBVT is a low-dropout linear regulator designed for power management, delivering a fixed output of 3.3V.

Product Features and Performance

Positive output configuration

Fixed output voltage of 3.3V

Capable of handling input voltages up to 16V

Maximum dropout voltage of 0.37V at 100mA load

Output current capacity of 100mA

Low quiescent current of 95 µA

High power supply rejection ratio (PSRR) of 63dB at 1kHz

Product Advantages

High efficiency due to low dropout voltage

Minimal power loss during operation

Compact SOT-23-5 package suitable for space-constrained applications

Key Technical Parameters

Voltage Input (Max): 16V

Voltage Output (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.37V @ 100mA

Current Output: 100mA

Quiescent Current (Iq): 95 µA

Supply Current (Max): 1.7 mA

PSRR: 63dB (1kHz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Short Circuit Protection

Compatibility

Designed for use in various electronic applications requiring a regulated 3.3V

Application Areas

Consumer Electronics

Industrial Equipment

Telecommunications

Computing Systems

Product Lifecycle

Status: Last Time Buy

Indication of nearing discontinuation with recommended to secure stock or look for replacements

Several Key Reasons to Choose This Product

High reliability with built-in protection features

Low power consumption enhancing battery life in portable devices

Stable performance with excellent voltage regulation

Suitable for a wide range of operating temperatures from -40°C to 125°C

Available in a small, surface-mount package offering ease of integration into system designs

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LP2981-33DBVT

Product Attribute LP2981-33DBVTG4 LP2981-33DBVTE4 LP2981-33DBVRG4 LP2981-33MDBVREP
Part Number LP2981-33DBVTG4 LP2981-33DBVTE4 LP2981-33DBVRG4 LP2981-33MDBVREP
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Output Type - Current - Unbuffered Voltage - Buffered -
Current - Output - - - -
Protection Features - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Output (Max) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
PSRR - - - -
Voltage - Output (Min/Fixed) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Series - - - -
Voltage Dropout (Max) - - - -
Number of Regulators - - - -
Voltage - Input (Max) - - - -
Output Configuration - - - -
Current - Supply (Max) - - - -
Current - Quiescent (Iq) - - - -
Control Features - - - -
Mounting Type - Surface Mount Through Hole Surface Mount

LP2981-33DBVT Datasheet PDF

Download LP2981-33DBVT pdf datasheets and Texas Instruments documentation for LP2981-33DBVT - Texas Instruments.

PCN Assembly/Origin
2.73KHz.pdf
PCN Design/Specification
Copper Wire Revision C 24/Sep/2014.pdf SOT23, VSSOP Cu Wire 28/Jun/2013.pdf

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.

Write a Review

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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

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LP2981-33DBVT Image

LP2981-33DBVT

Texas Instruments
32D-LP2981-33DBVT

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