LM2576-5.0WT

Product Overview

Category

The LM2576-5.0WT belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 5V
• Maximum Output Current: 3A
• Efficiency: Up to 92%
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-220
• Pin Count: 5
• RoHS Compliant: Yes

Packaging/Quantity

The LM2576-5.0WT is typically packaged in a TO-220 package. It is available in various quantities depending on the supplier and customer requirements.

Specifications

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 5V
• Output Current: Up to 3A
• Switching Frequency: 52 kHz
• Dropout Voltage: 1.2V (typical)
• Line Regulation: ±0.5% (typical)
• Load Regulation: ±0.5% (typical)
• Ripple Rejection Ratio: 70 dB (typical)
• Thermal Shutdown Protection: Yes

Detailed Pin Configuration

The LM2576-5.0WT has the following pin configuration:

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

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss.
• Thermal shutdown protection prevents overheating.
• Compact TO-220 package facilitates easy integration into circuits.
• Low dropout voltage enables efficient regulation.

Advantages

• Wide input voltage range makes it suitable for various applications.
• High efficiency reduces power dissipation and improves energy efficiency.
• Thermal shutdown protection enhances reliability and safety.
• Compact package allows for space-saving designs.
• Low dropout voltage ensures efficient voltage regulation.

Disadvantages

• Limited output current may not be sufficient for high-power applications.
• Switching frequency may introduce noise in sensitive circuits.
• Requires external components for proper operation.

Working Principles

The LM2576-5.0WT is a step-down switching regulator that uses a buck converter topology. It operates by rapidly switching the input voltage on and off to achieve the desired output voltage. The internal control circuitry adjusts the duty cycle of the switching signal to regulate the output voltage. This switching action allows for efficient voltage conversion with minimal power loss.

Detailed Application Field Plans

The LM2576-5.0WT can be used in various applications, including: 1. Power supplies for microcontrollers and other low-power devices. 2. Battery charging circuits. 3. Automotive electronics. 4. Industrial control systems. 5. LED lighting applications.

Detailed and Complete Alternative Models

Some alternative models to the LM2576-5.0WT include: - LM2596-5.0WT: Similar specifications but with adjustable output voltage. - LM2575-5.0WT: Lower maximum output current but lower cost. - LM2577-5.0WT: Higher maximum output current but larger package size.

In conclusion, the LM2576-5.0WT is a voltage regulator with a wide input voltage range, high efficiency, and thermal shutdown protection. It is commonly used in various electronic applications and offers advantages such as versatility, efficiency, and compactness. However, it has limitations in terms of output current and potential noise generation. Alternative models provide options with different features and specifications.