LM2672M-3.3/NOPB

Product Overview

Category

The LM2672M-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 LM2672M-3.3/NOPB comes in a small outline package (SOP) with 8 pins.

Essence

The essence of the LM2672M-3.3/NOPB is its ability to efficiently convert higher input voltages into a stable 3.3V output for various applications.

Packaging/Quantity

This product is typically available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 8V to 40V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 3A
• Dropout Voltage: 1.2V (maximum)
• Line Regulation: ±0.5% (maximum)
• Load Regulation: ±0.5% (maximum)
• Quiescent Current: 10mA (typical)
• Switching Frequency: 260kHz (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for stability control
5. SS/TR: Soft-start/Tracking pin for controlling startup behavior
6. EN: Enable pin for turning the regulator on/off
7. SW: Switching node pin for connecting the inductor and output capacitor
8. VOUT: Output voltage pin

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss during voltage conversion.
• Built-in protection features such as thermal shutdown and current limit safeguard the circuit and connected components.
• Soft-start function prevents excessive inrush current during startup.
• Adjustable output voltage through external resistors.

Advantages

• Compact package size enables space-saving designs.
• High efficiency reduces power dissipation and extends battery life in portable devices.
• Wide operating temperature range allows for reliable operation in various environments.
• Excellent line and load regulation ensure stable output voltage under different conditions.
• Easy to use and integrate into existing circuits.

Disadvantages

• Requires additional external components for proper operation.
• Limited output current compared to some other voltage regulators.
• Higher cost compared to linear regulators.

Working Principles

The LM2672M-3.3/NOPB is a step-down switching voltage regulator that utilizes a pulse-width modulation (PWM) control scheme. It operates by rapidly switching an internal power MOSFET on and off to regulate the output voltage. The feedback mechanism compares the output voltage with a reference voltage, adjusting the duty cycle of the switching signal to maintain a stable output.

Detailed Application Field Plans

The LM2672M-3.3/NOPB finds applications in various fields, including:

1. Power supply modules for microcontrollers and digital circuits.
2. Battery-powered devices requiring stable voltage levels.
3. Automotive electronics for voltage regulation in vehicle systems.
4. Industrial automation systems for powering sensors and actuators.
5. Telecommunications equipment for voltage regulation in communication modules.

Detailed and Complete Alternative Models

1. LM2596S-3.3/NOPB: Similar specifications and functionality, but with a different package.
2. LM317T: Linear voltage regulator with adjustable output voltage.
3. TPS54332DDAR: Step-down switching regulator with higher output current capability.

(Note: This is not an exhaustive list of alternative models, but provides a few examples.)

In conclusion, the LM2672M-3.3/NOPB is a versatile voltage regulator that offers efficient and stable voltage conversion for a wide range of applications. Its compact size, high efficiency, and built-in protection features make it a popular choice among designers. However, it does have some limitations in terms of output current and additional external component requirements.