LM2674LDX-5.0/NOPB

Product Overview

Category

The LM2674LDX-5.0/NOPB belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and control the output voltage.

Characteristics

• Input Voltage Range: 8V to 40V
• Output Voltage: 5V
• Maximum Output Current: 1A
• Efficiency: Up to 92%
• Switching Frequency: 260kHz
• Operating Temperature Range: -40°C to +125°C

Package

The LM2674LDX-5.0/NOPB comes in a TO-263 package, which is a surface-mount power package.

Essence

The essence of this product lies in its ability to efficiently regulate the input voltage to a stable 5V output voltage.

Packaging/Quantity

The LM2674LDX-5.0/NOPB is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 8V to 40V
• Output Voltage: 5V
• Maximum Output Current: 1A
• Quiescent Current: 10mA
• Dropout Voltage: 1.2V
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Ripple Rejection: 70dB
• Switching Frequency: 260kHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM2674LDX-5.0/NOPB has the following pin configuration:

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

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss during voltage regulation.
• Integrated over-temperature and over-current protection for enhanced reliability.
• Adjustable output voltage through external resistors.
• Soft-start feature prevents excessive inrush current during startup.

Advantages

• Compact size and surface-mount package make it suitable for space-constrained applications.
• High efficiency results in reduced power dissipation and improved energy efficiency.
• Wide input voltage range enables compatibility with various power sources.
• Integrated protection features enhance system reliability and longevity.

Disadvantages

• Limited maximum output current of 1A may not be sufficient for high-power applications.
• Switching frequency of 260kHz may introduce audible noise in sensitive audio applications.

Working Principles

The LM2674LDX-5.0/NOPB is a step-down switching voltage regulator. It operates by rapidly switching an internal power transistor on and off to regulate the output voltage. This switching action allows for efficient conversion of the input voltage to the desired output voltage level. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable 5V output.

Detailed Application Field Plans

The LM2674LDX-5.0/NOPB can be used in various applications, including but not limited to:

1. Power supplies for microcontrollers and other digital circuits.
2. Battery-powered devices requiring a regulated 5V supply.
3. Automotive electronics, such as infotainment systems and dashboard displays.
4. Industrial control systems and automation equipment.
5. LED lighting applications.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM2674LDX-5.0/NOPB include:

1. LM2596S-5.0/NOPB
2. LM317T
3. LT1084CP-5.0
4. TPS5430DDAR

These models provide comparable voltage regulation capabilities and can be considered as alternatives based on specific application requirements.

In conclusion, the LM2674LDX-5.0/NOPB is a voltage regulator that efficiently converts input voltages in the range of 8V to 40V to a stable 5V output. With its compact size, high efficiency, and integrated protection features, it finds applications in various electronic systems requiring reliable and regulated power supply.