LM2673T-5.0/NOPB

Product Overview

Category

The LM2673T-5.0/NOPB belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

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 LM2673T-5.0/NOPB comes in a TO-220 package.

Essence

This voltage regulator is designed to provide a stable and regulated 5V output voltage from a wide range of input voltages.

Packaging/Quantity

The LM2673T-5.0/NOPB is typically available in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Input Voltage Range: 8V to 40V
• Output Voltage: 5V ±2%
• Maximum Output Current: 3A
• Dropout Voltage: 1.2V (typical)
• Line Regulation: ±0.5% (typical)
• Load Regulation: ±0.5% (typical)
• Quiescent Current: 10mA (typical)
• Switching Frequency: 260kHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM2673T-5.0/NOPB has the following pin configuration:

```

---

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

• VIN: Input Voltage
• GND: Ground
• VOUT: Output Voltage
• SW: Switching Node
• FB: Feedback Pin
• NC: No Connection

Functional Features

1. Wide Input Voltage Range: The LM2673T-5.0/NOPB can accept input voltages ranging from 8V to 40V, making it suitable for a variety of applications.
2. High Efficiency: With an efficiency of up to 92%, this voltage regulator minimizes power loss and maximizes energy conversion.
3. Overcurrent Protection: The LM2673T-5.0/NOPB incorporates overcurrent protection to safeguard the circuitry and connected devices.
4. Thermal Shutdown: In case of excessive temperature, the regulator automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile use.
• High efficiency reduces power dissipation.
• Overcurrent protection ensures safety.
• Thermal shutdown prevents overheating.

Disadvantages

• Limited output current capacity (up to 3A).
• Requires external components for proper operation.

Working Principles

The LM2673T-5.0/NOPB is a step-down switching voltage regulator. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The internal switch operates at a fixed frequency of 260kHz, converting the input voltage to a regulated 5V output. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output.

Detailed Application Field Plans

The LM2673T-5.0/NOPB finds applications in various fields, including:

1. Power Supply Modules: It can be used as a voltage regulator in power supply modules for electronic devices.
2. Automotive Electronics: The wide input voltage range makes it suitable for automotive applications, such as powering sensors and control circuits.
3. Industrial Control Systems: It can be employed in industrial control systems to regulate voltage for various components.
4. Battery-Powered Devices: The LM2673T-5.0/NOPB can be utilized in battery-powered devices to provide a stable 5V supply.

Detailed and Complete Alternative Models

1. LM2596T-5.0/NOPB: Similar to the LM2673T-5.0/NOPB, this model offers a 5V output voltage with a wide input voltage range.
2. LM317T: This adjustable voltage regulator allows for precise output voltage control within a specified range.
3. LM7805: A popular linear voltage regulator that provides a fixed 5V output with a maximum current of 1A.

These alternative models offer similar functionality and can be considered based on specific requirements and constraints.

In conclusion, the LM2673T-5.0/NOPB is a voltage regulator that provides a stable 5V output from a wide input voltage range. With its high efficiency, overcurrent protection, and thermal shutdown features, it is suitable for various