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LM2679T-12

LM2679T-12

Manufacturer No:

LM2679T-12

Manufacturer:

National Semiconductor

Description:

SWITCHING REGULATOR, VOLTAGE-MOD

Datasheet:

Datasheet

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LM2679T-12 Specifications

  • Type
    Parameter
  • Supplier Device Package
    TO-220-7
  • Package / Case
    TO-220-7 Formed Leads
  • Mounting Type
    Through Hole
  • Operating Temperature
    -40°C ~ 125°C (TJ)
  • Synchronous Rectifier
    No
  • Frequency - Switching
    260kHz
  • Current - Output
    5A
  • Voltage - Output (Max)
    -
  • Voltage - Output (Min/Fixed)
    12V
  • Voltage - Input (Max)
    40V
  • Voltage - Input (Min)
    8V
  • Number of Outputs
    1
  • Output Type
    Fixed
  • Topology
    Buck
  • Output Configuration
    Positive
  • Function
    Step-Down
  • Packaging
    Bulk
  • Product Status
    Obsolete
  • Series
    SIMPLE SWITCHER®
The LM2679T-12 is a highly efficient step-down voltage regulator integrated circuit (IC) chip. Some of its advantages and application scenarios include:1. High Efficiency: The LM2679T-12 offers high efficiency, typically up to 92%. This means that it can convert a higher input voltage to a lower output voltage with minimal power loss, making it suitable for applications where energy efficiency is crucial.2. Wide Input Voltage Range: The IC chip can handle a wide input voltage range, typically from 8V to 40V. This flexibility allows it to be used in various applications where the input voltage may vary significantly.3. Fixed Output Voltage: The LM2679T-12 provides a fixed output voltage of 12V. This makes it suitable for applications that require a stable and regulated 12V power supply.4. Adjustable Output Voltage: In addition to the fixed 12V output, the LM2679T-12 also has an adjustable output voltage feature. By using external resistors, the output voltage can be set to a different value within a specific range, providing flexibility for different application requirements.5. Thermal Shutdown and Current Limit Protection: The IC chip incorporates thermal shutdown and current limit protection mechanisms. These features protect the chip from overheating and excessive current, ensuring its safe operation and longevity.Application scenarios for the LM2679T-12 include:1. Power Supply Modules: The LM2679T-12 can be used in power supply modules to convert higher input voltages to a regulated 12V output. This makes it suitable for various applications such as industrial equipment, automotive electronics, and telecommunications.2. Battery Charging Systems: The IC chip can be utilized in battery charging systems to regulate the voltage and provide a stable 12V output for charging batteries. This can be useful in applications like electric vehicles, portable devices, and renewable energy systems.3. LED Lighting: The LM2679T-12 can be employed in LED lighting systems to provide a regulated 12V power supply for driving LEDs. Its high efficiency and wide input voltage range make it suitable for both indoor and outdoor lighting applications.4. Audio Amplifiers: The IC chip can be used in audio amplifier circuits to provide a stable 12V power supply for powering the amplifier components. This can be beneficial in audio systems, musical instruments, and home theater setups.Overall, the LM2679T-12 offers high efficiency, wide input voltage range, and various protection features, making it a versatile choice for applications that require a regulated 12V power supply.
LM2679T-12 Relevant information