LM2672N-3.3/NOPB

Product Overview

Category

The LM2672N-3.3/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: 3.3V
• Output Current: Up to 3A
• Efficiency: Up to 92%
• Switching Frequency: 260kHz
• Operating Temperature Range: -40°C to +125°C

Package

The LM2672N-3.3/NOPB comes in a TO-220 package, which provides thermal efficiency and easy mounting on circuit boards.

Essence

The essence of the LM2672N-3.3/NOPB is its ability to efficiently convert higher input voltages into a stable 3.3V output voltage, making it suitable for various applications.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 8V to 40V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 3A
• Dropout Voltage: 1.2V (typical)
• Quiescent Current: 10mA (typical)
• Line Regulation: 0.02% (typical)
• Load Regulation: 0.2% (typical)
• Switching Frequency: 260kHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM2672N-3.3/NOPB has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. FB (Feedback)
4. SW (Switch)
5. VOUT (Output Voltage)

Functional Features

• Wide input voltage range allows for flexibility in various applications.
• High efficiency ensures minimal power loss during voltage conversion.
• Overcurrent and thermal protection safeguards the circuit and the LM2672N-3.3/NOPB itself.
• Adjustable output voltage through external resistors provides customization options.

Advantages

• Efficient voltage regulation with high conversion efficiency.
• Compact TO-220 package for easy integration into circuit designs.
• Wide operating temperature range enables usage in extreme environments.
• Overcurrent and thermal protection enhance reliability and safety.

Disadvantages

• Limited output current capacity of up to 3A may not be suitable for high-power applications.
• Fixed output voltage of 3.3V may not meet the requirements of all applications.

Working Principles

The LM2672N-3.3/NOPB utilizes a switching regulator topology to efficiently convert higher input voltages into a stable 3.3V output. It employs a pulse-width modulation (PWM) control scheme to regulate the output voltage. The internal oscillator generates a fixed frequency signal, which controls the switching of the internal power MOSFET. This switching action, along with an inductor and capacitor, creates a regulated output voltage.

Detailed Application Field Plans

The LM2672N-3.3/NOPB finds applications in various fields, including:

1. Power supplies for microcontrollers and digital circuits.
2. Battery-powered devices requiring stable voltage levels.
3. Automotive electronics, such as infotainment systems and lighting controls.
4. Industrial automation systems, where reliable voltage regulation is crucial.
5. Telecommunications equipment, including routers and switches.

Detailed and Complete Alternative Models

1. LM2672M-3.3/NOPB: Similar to LM2672N-3.3/NOPB, but in a surface-mount package.
2. LM2672N-5.0/NOPB: Provides a fixed 5V output voltage.
3. LM2672M-ADJ/NOPB: Adjustable output voltage version with a wider input voltage range.

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

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