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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLM2673SDX-3.3
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LM2673SDX-3.3 - Texas Instruments

Manufacturer Part Number
LM2673SDX-3.3
Manufacturer
Texas Instruments
Allelco Part Number
32D-LM2673SDX-3.3
ECAD Model
Parts Description
IC REG BUCK 3.3V 3A 14VSON
Detailed Description
Package
14-VDFN Exposed Pad
Data sheet
LM2673SDX-3.3.pdf
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In stock: 15210

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Specifications

LM2673SDX-3.3 Tech Specifications
Texas Instruments - LM2673SDX-3.3 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LM2673SDX-3.3

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Output (Min/Fixed) 3.3V  
Voltage - Output (Max) -  
Voltage - Input (Min) 8V  
Voltage - Input (Max) 40V  
Topology Buck  
Synchronous Rectifier No  
Supplier Device Package 14-VSON (5x6)  
Series SIMPLE SWITCHER®  
Package / Case 14-VDFN Exposed Pad  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Output Type Fixed  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C (TJ)  
Number of Outputs 1  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 260kHz  
Current - Output 3A  
Base Product Number LM2673  

Parts Introduction

Manufacturer Part Number

LM2673SDX-3.3

Manufacturer

Texas Instruments

Introduction

High-efficiency, synchronous step-down DC-DC converter

Designed for simple power supply design

Product Features and Performance

Wide input voltage range: 8V to 40V

3A output current capability

260kHz switching frequency

Integrated power switches and rectifier

High efficiency up to 95%

Low quiescent current

Soft-start function

Thermal shutdown protection

Short-circuit and overcurrent protection

Product Advantages

Simple design with minimal external components

Compact solution with integrated power switches

High-efficiency power conversion

Reliable protection features

Key Technical Parameters

Input voltage range: 8V to 40V

Output voltage: 3.3V

Output current: 3A

Switching frequency: 260kHz

Efficiency: Up to 95%

Quality and Safety Features

RoHS non-compliant

Thermal shutdown protection

Short-circuit and overcurrent protection

Compatibility

Suitable for a variety of applications that require a regulated 3.3V power supply

Application Areas

Telecommunications equipment

Industrial automation

Instrumentation

Consumer electronics

Product Lifecycle

This product is still in production and available from Texas Instruments

Replacement or upgraded products may be available in the future

Key Reasons to Choose This Product

Simple, easy-to-use design with minimal external components

High-efficiency power conversion up to 95%

Reliable protection features for safe and stable operation

Wide input voltage range and high output current capability

Compact solution with integrated power switches

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LM2673SDX-3.3

Product Attribute LM2673SDX-3.3 LM2673SX-12 LM2673SD-3.3 LM2673S-5.0
Part Number LM2673SDX-3.3 LM2673SX-12 LM2673SD-3.3 LM2673S-5.0
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Topology Buck Buck Buck Buck
Current - Output 3A 3A 3A 3A
Output Configuration Positive Positive Positive Positive
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tube
Number of Outputs 1 1 1 1
Series SIMPLE SWITCHER® SIMPLE SWITCHER® SIMPLE SWITCHER® SIMPLE SWITCHER®
Voltage - Output (Min/Fixed) 3.3V 12V 3.3V 5V
Package / Case 14-VDFN Exposed Pad TO-263-8, D²Pak (7 Leads + Tab), TO-263CA 14-VDFN Exposed Pad TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Voltage - Output (Max) - - - -
Supplier Device Package 14-VSON (5x6) DDPAK/TO-263-7 14-VSON (5x6) DDPAK/TO-263-7
Base Product Number LM2673 LM2673 LM2673 LM2673
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Voltage - Input (Max) 40V 40V 40V 40V
Synchronous Rectifier No No No No
Output Type Fixed Fixed Fixed Fixed
Voltage - Input (Min) 8V 8V 8V 8V
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Frequency - Switching 260kHz 260kHz 260kHz 260kHz
Function Step-Down Step-Down Step-Down Step-Down

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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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LM2673SDX-3.3 Image

LM2673SDX-3.3

Texas Instruments
32D-LM2673SDX-3.3

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