LM2676T-5.0/NOPB

Product Overview

Category

The LM2676T-5.0/NOPB belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Input Voltage Range: 8V to 40V
• Output Voltage: 5V
• Maximum Output Current: 3A
• Efficiency: Up to 92%
• Switching Frequency: 260kHz
• Operating Temperature Range: -40°C to +125°C

Package

The LM2676T-5.0/NOPB comes in a TO-220 package, which provides thermal efficiency and ease of mounting.

Essence

The essence of the LM2676T-5.0/NOPB lies in its ability to efficiently convert higher input voltages into a stable 5V output, making it suitable for various electronic applications.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 50 units per reel/tube.

Specifications

• Input Voltage Range: 8V to 40V
• Output Voltage: 5V
• Output Current: Up to 3A
• Dropout Voltage: 1.2V (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 10mA (typical)
• Switching Frequency: 260kHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM2676T-5.0/NOPB has the following pin configuration:

```

---

| | --| VIN GND|-- --| VOUT SW |-- --| FB EN |-- |___________| ```

• VIN: Input Voltage
• GND: Ground
• VOUT: Output Voltage
• SW: Switching Node
• FB: Feedback Pin
• EN: Enable Pin

Functional Features

1. Efficiency: The LM2676T-5.0/NOPB offers high efficiency, up to 92%, reducing power dissipation and increasing overall system efficiency.
2. Wide Input Voltage Range: With an input voltage range of 8V to 40V, this regulator can handle a wide variety of input sources.
3. Output Voltage Regulation: It provides a stable 5V output voltage, ensuring consistent performance for connected devices.
4. Current Limit Protection: The LM2676T-5.0/NOPB incorporates current limit protection, safeguarding the circuit from excessive current flow.
5. Thermal Shutdown: In case of overheating, the device features thermal shutdown protection, preventing damage to the regulator.

Advantages and Disadvantages

Advantages

• High efficiency operation
• Wide input voltage range
• Stable output voltage
• Current limit protection
• Thermal shutdown protection

Disadvantages

• Limited output current capacity (up to 3A)

Working Principles

The LM2676T-5.0/NOPB is a step-down switching voltage regulator. It utilizes a pulse-width modulation (PWM) control scheme to efficiently convert higher input voltages into a regulated 5V output. The internal control circuitry adjusts the duty cycle of the switching transistor to maintain the desired output voltage. This switching action reduces power dissipation and increases overall efficiency.

Detailed Application Field Plans

The LM2676T-5.0/NOPB finds applications in various fields, including:

1. Power Supplies: It can be used in power supply circuits to provide a stable 5V output for microcontrollers, sensors, and other electronic components.
2. Automotive Electronics: The regulator can be employed in automotive applications to power low-voltage devices such as sensors, displays, and control modules.
3. Industrial Control Systems: It is suitable for industrial control systems that require a regulated 5V supply for microprocessors, communication interfaces, and other control circuitry.
4. Battery-Powered Devices: The LM2676T-5.0/NOPB can be utilized in battery-powered devices, such as portable electronics and IoT devices, to efficiently regulate the voltage from the battery source.

Detailed and Complete Alternative Models

1. LM2596S-5.0/NOPB: Similar to the LM2676T-5.0/NOPB, this model offers a 5V output voltage with a maximum current of 3A. It comes in a TO-263 package.
2. LM317T: This adjustable voltage regulator can be configured to provide a 5V output by using appropriate resistors. It has a maximum output current of 1.5A