LM2678SX-12

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LM2678SX-12

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  • HerstellerTexas Instruments

  • Herstellerteil #LM2678SX-12

  • Auf Lager3755

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Attribut Wert
Brand Texas Instruments
ProductType Switching Voltage Regulators
Subcategory PMIC - Power Management ICs
MountingStyle SMD/SMT
Package/Case TO-263-7
MinimumOperatingTemperature - 40 C
MaximumOperatingTemperature + 125 C
Tradename SIMPLE SWITCHER
Height 4.57 mm
Length 10.16 mm
Width 8.64 mm
UnitWeight 0.056438 oz
Topology Buck
OutputVoltage 12 V
OutputCurrent 5 A
NumberofOutputs 1 Output
InputVoltage-Min 8 V
InputVoltage-Max 40 V
SwitchingFrequency 260 kHz
Type Step Down

Übersicht

Description

The LM2678SX-12 is a voltage regulator from Texas Instruments, designed for efficient step-down (buck) conversion. It features a fixed output voltage of 12V and is capable of delivering up to 1A of output current. The device operates over a wide input voltage range of 7V to 40V, making it suitable for various applications, including automotive, industrial, and portable devices.
Key features include a high efficiency (up to 95%), a built-in switch that minimizes external component count, and thermal shutdown protection for reliability. The LM2678SX-12 utilizes a frequency of 100kHz, which helps in optimizing the size of external inductors and capacitors. Its compact SO-8 package allows for space-efficient designs.
The regulator also includes features such as a soft-start function, adjustable frequency compensation, and low quiescent current, which contribute to better performance in battery-operated applications. Overall, the LM2678SX-12 is ideal for designers seeking a robust, efficient, and easy-to-implement solution for power management.

Equivalent

Equivalent products to the LM2678SX-12 include the LM2678M, LM2678-12, and the LM2678-ADJ from Texas Instruments. Other alternatives from different manufacturers may include the LT1083, MIC29302, and ADP3180. Always check the specific datasheet for voltage, current ratings, and package compatibility to ensure a suitable replacement.

Features

The LM2678SX-12 is a high-efficiency step-down (buck) voltage regulator from Texas Instruments. Key features include:
1. Output Voltage: Fixed 12V output.
2. Input Voltage Range: Wide range of 8V to 40V, allowing for versatile application in various power sources.
3. Output Current: Capable of delivering up to 1.5A of output current.
4. Efficiency: High efficiency (up to 80-90%) reduces heat dissipation and improves thermal performance.
5. Integrated Switch: Includes a high-side N-channel MOSFET for simplified design and reduced component count.
6. Short-Circuit Protection: Features current limiting and thermal shutdown for enhanced reliability.
7. Soft Start: Integrated soft-start function to minimize inrush current.
8. Package Type: Available in a TO-220 package for easy thermal management.
These features make the LM2678SX-12 suitable for various applications, including industrial, automotive, and consumer electronics.

Pinout

The LM2678SX-12 is a step-down (buck) voltage regulator with a pin count of 8. It is designed to deliver a fixed output voltage of 12V, and its main functions include:
1. VIN (Pin 1): Input voltage (up to 40V).
2. SW (Pin 2): Switch pin; connects to the inductor.
3. GND (Pin 3): Ground reference.
4. VOUT (Pin 4): Output voltage (12V).
5. COMP (Pin 5): Compensation pin for stability.
6. RTH (Pin 6): Thermal protection; can be connected to a resistor for additional functions.
7. ENABLE (Pin 7): Enable pin to turn the regulator on or off.
8. SS (Pin 8): Soft-start pin to control the startup time.
This regulator is suitable for various applications, including power supplies for portable devices, automotive systems, and industrial equipment.

Manufacturer

The LM2678SX-12 is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930, Texas Instruments designs and produces a wide range of analog and digital semiconductor devices, including integrated circuits (ICs), embedded processors, and various electronic components.
Texas Instruments is well-known for its innovation in the field of electronics and is a key player in sectors such as automotive, industrial, communications, and consumer electronics. The LM2678SX-12 is a part of TI's family of step-down voltage regulators, designed to provide efficient power management for various applications. It features a high output current capability and a wide input voltage range, making it suitable for a variety of power supply designs.
Overall, Texas Instruments is recognized for its commitment to quality, reliability, and performance in the semiconductor industry.

Application

The LM2678SX-12 is a step-down (buck) voltage regulator designed for various applications, including:
1. Power Supply for Microcontrollers: Provides stable voltage for embedded systems.
2. Industrial Equipment: Powers sensors, actuators, and control systems.
3. Telecommunications: Supplies power to communication devices and networking equipment.
4. Consumer Electronics: Used in devices such as LCD displays and portable gadgets.
5. Automotive Applications: Powers electronic control units (ECUs) and infotainment systems.
6. Battery-Powered Devices: Efficiently regulates voltage in battery management systems.
Its versatility and efficiency make it suitable for a wide range of applications requiring reliable voltage regulation.

Package

The LM2678SX-12 is available in a TO-263-5 package type. This surface-mount package features five pins and is designed for efficient heat dissipation and compact design in power management applications.

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