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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLM2678S-12
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LM2678S-12 - Texas Instruments

Manufacturer Part Number
LM2678S-12
Manufacturer
Texas Instruments
Allelco Part Number
32D-LM2678S-12
ECAD Model
Parts Description
IC REG BUCK 12V 5A TO263-7
Detailed Description
Package
TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Data sheet
LM2678.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 4759
  • Unit Price: $9.62
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $9.62 $9.62
10+ $8.688 $86.88
25+ $8.284 $207.10
100+ $7.193 $719.30
The above prices does not include taxes and freight rates, which will be calculated on the order pages.
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Specifications

LM2678S-12 Tech Specifications
Texas Instruments - LM2678S-12 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LM2678S-12

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Output (Min/Fixed) 12V  
Voltage - Output (Max) -  
Voltage - Input (Min) 15V  
Voltage - Input (Max) 40V  
Topology Buck  
Synchronous Rectifier No  
Supplier Device Package DDPAK/TO-263-7  
Series SIMPLE SWITCHER®  
Package / Case TO-263-8, D²Pak (7 Leads + Tab), TO-263CA  
Product Attribute Attribute Value  
Package Tube  
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 5A  
Base Product Number LM2678  

Parts Introduction

Manufacturer Part Number

LM2678S-12

Manufacturer

Texas Instruments

Introduction

The LM2678S-12 is part of Texas Instruments' SIMPLE SWITCHER® series, designed as a step-down (buck) regulator for converting higher voltage to lower voltage with high efficiency.

Product Features and Performance

Step-down voltage regulator

Positive output configuration

Buck topology for efficient power conversion

Fixed output voltage of 12V

Capable of delivering 5A output current

Operates at a switching frequency of 260kHz

Non-synchronous rectifier design

Operational over a wide temperature range from -40°C to 125°C

Product Advantages

High efficiency reduces thermal footprint

Designed for simplicity and ease of use

Supports a wide input voltage range (15V to 40V) suitable for various applications

High current output capacity of 5A meets the demands of numerous high-power applications

Robust thermal performance ensures reliability over a wide operating temperature range

Key Technical Parameters

Voltage Input (Min): 15V

Voltage Input (Max): 40V

Voltage Output (Min/Fixed): 12V

Current Output: 5A

Frequency Switching: 260kHz

Operating Temperature: -40°C ~ 125°C (TJ)

Quality and Safety Features

Built to Texas Instruments' rigorous quality specifications

Operates reliably across a wide temperature range, ensuring operational integrity in demanding conditions

Compatibility

Surface mount package (TO-263-8, D2PAK) ensures compatibility with a wide range of PCB designs

Application Areas

Ideal for high-efficiency power supply designs

Suitable for industrial, automotive, and telecommunications equipment

Can be used in battery-powered devices requiring efficient power conversion

Product Lifecycle

Marked as Last Time Buy indicating that it is nearing discontinuation

Users are advised to consider securing sufficient stock or exploring replacements or upgrades

Several Key Reasons to Choose This Product

High-efficiency step-down regulation to meet stringent power requirements

Support for a wide input voltage range offers flexibility in design

High current output capability is ideal for demanding applications

Texas Instruments' reputation for reliability and quality

Comprehensive operation range making it suitable for a variety of under-hood and on-board automotive applications

Last Time Buy status makes it essential for legacy system maintenance

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LM2678S-12

Product Attribute LM2678S-12 LM2678S-5.0 LM2677T-5.0 LM2677T-ADJ
Part Number LM2678S-12 LM2678S-5.0 LM2677T-5.0 LM2677T-ADJ
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Mounting Type Surface Mount Surface Mount Through Hole Through Hole
Package Tube Tube Tube Tube
Package / Case TO-263-8, D²Pak (7 Leads + Tab), TO-263CA TO-263-8, D²Pak (7 Leads + Tab), TO-263CA TO-220-7 Formed Leads TO-220-7 Formed Leads
Number of Outputs 1 1 1 1
Base Product Number LM2678 LM2678 LM2677 LM2677
Output Configuration Positive Positive Positive Positive
Output Type Fixed Fixed Fixed Adjustable
Voltage - Output (Min/Fixed) 12V 5V 5V 1.21V
Voltage - Output (Max) - - - 37V
Series SIMPLE SWITCHER® SIMPLE SWITCHER® SIMPLE SWITCHER® SIMPLE SWITCHER®
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
Topology Buck Buck Buck Buck
Voltage - Input (Max) 40V 40V 40V 40V
Current - Output 5A 5A 5A 5A
Supplier Device Package DDPAK/TO-263-7 DDPAK/TO-263-7 TO-220-7 TO-220-7
Synchronous Rectifier No No No No
Voltage - Input (Min) 15V 8V 8V 8V
Function Step-Down Step-Down Step-Down Step-Down

LM2678S-12 Datasheet PDF

Download LM2678S-12 pdf datasheets and Texas Instruments documentation for LM2678S-12 - Texas Instruments.

PCN Assembly/Origin
2.73KHz.pdf
HTML Datasheet
LM2678.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.

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Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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LM2678S-12 Image

LM2678S-12

Texas Instruments
32D-LM2678S-12

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