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LM2678S-12 The Texas Instruments LM2678S-12 is a high-efficiency, 5A SIMPLE SWITCHER® buck converter. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output.
Mfr Part #:

LM2678S-12

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM2678S-12 is a high-efficiency, 5A SIMPLE SWITCHER® buck converter. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output.
✓ Total Stock: 2,508 pcs
$ Price Range: $0.16

LM2678S-12 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request On Request On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
8 pcs
On Request
8 pcs On Request 1 On Request On Request JM57AC On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LM2678S-12 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Duty Cycle
Efficiency
Features
Frequency
Function
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Quiescent Current
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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LM2678S-12 Description

Short technical summary and product information.

The LM2678S-12 from Texas Instruments is an integrated circuit designed for step-down (buck) voltage regulation. It features a high efficiency of up to 92% and can deliver a continuous output current of 5A.

 

This device operates within a wide input voltage range of 8V to 40V, making it suitable for various power supply applications. It includes features such as frequency synchronization and over-current protection. The control mode is voltage mode, and it has a typical quiescent current of 4.2mA when switched off, with a standby current of 50µA.

 

The LM2678S-12 is available in a surface mount DDPAK/TO-263-7 package. Its operating junction temperature range is -40°C to 125°C. The component is designed for ease of use with off-the-shelf external components, simplifying the design process for engineers.

 

Key electrical characteristics include a switching frequency of 260kHz, a maximum duty cycle of 91%, and an output tolerance of ±2% over full line and load conditions. The internal DMOS output switch has a resistance of 120mΩ.

LM2678S-12 Quick Information

Product Type: DC DC Switching Regulator
Series: LM2678
Canonical Name: LM2678S-12 SIMPLE SWITCHER® Buck Converter
Subcategory: DC DC Switching Regulators

LM2678S-12 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM2678S-12 Estimated Pricing

Qty Low High
1+ $0.16 $0.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM2678S-12 Features

  • High efficiency up to 92% buck converter.
  • Wide 8V to 40V input voltage range.
  • Delivers 5A maximum output current.
  • Fixed 12V output voltage.
  • TO-263-7 surface mount package.

LM2678S-12 Applications

  • Powering embedded systems.
  • DC-DC power conversion.
  • Battery operated devices.
  • Industrial power supplies.

LM2678S-12 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the LM2678S-12?

The input voltage range is 8V to 40V.

What is the maximum output current of the LM2678S-12?

The maximum output current is 5A.

What is the switching frequency of the LM2678S-12?

The switching frequency is 260kHz.

What is the operating temperature range for the LM2678S-12?

The operating junction temperature range is -40°C to 125°C.

What package type is the LM2678S-12 available in?

The LM2678S-12 is available in a TO-263-8, D²Pak (7 Leads + Tab), TO-263CA package.

Is the LM2678S-12 RoHS compliant?

The LM2678S-12 is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the LM2678S-12?

The Moisture Sensitivity Level is 1 Unlimited.

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