LM2575-5.0BU

Product Overview

Category

The LM2575-5.0BU 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: 4.75V to 40V
• Output Voltage: 5.0V
• Output Current: Up to 1A
• Efficiency: Up to 92%
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C

Package

The LM2575-5.0BU comes in a TO-263 package, also known as D2PAK or DDPAK.

Essence

The essence of LM2575-5.0BU lies in its ability to efficiently convert higher input voltages into a stable 5.0V output for various electronic applications.

Packaging/Quantity

The LM2575-5.0BU is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 5.0V
• Output Current: Up to 1A
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-263 (D2PAK/DDPAK)
• Package Quantity: 250 units per reel/tube

Detailed Pin Configuration

The LM2575-5.0BU has the following pin configuration:

• Pin 1: Vin (Input Voltage)
• Pin 2: GND (Ground)
• Pin 3: Vout (Output Voltage)

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss during voltage conversion.
• Overcurrent and thermal protection safeguards the circuit and the LM2575-5.0BU itself.
• Adjustable output voltage with external resistors for customization.

Advantages

• Efficient voltage regulation with high conversion efficiency.
• Wide input voltage range enables compatibility with various power sources.
• Compact TO-263 package facilitates easy integration into electronic circuits.
• Overcurrent and thermal protection ensure reliable operation.

Disadvantages

• Limited output current capacity of up to 1A may not be sufficient for high-power applications.
• Switching frequency of 52 kHz may introduce audible noise in sensitive audio applications.

Working Principles

The LM2575-5.0BU utilizes a switching regulator topology to convert higher input voltages into a stable 5.0V 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 an internal power MOSFET. This switching action, along with an inductor and capacitor, efficiently steps down the input voltage to the desired output level.

Detailed Application Field Plans

The LM2575-5.0BU finds applications in various fields, including:

1. Power supply circuits for microcontrollers and digital ICs.
2. Battery charging circuits.
3. Automotive electronics.
4. Industrial automation systems.
5. LED lighting applications.
6. Portable electronic devices.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LM2575-5.0BU are:

1. LM2596-5.0: Similar functionality with adjustable output voltage.
2. LM317: Linear voltage regulator with adjustable output voltage.
3. LT1084: High-current linear voltage regulator.
4. TPS5430: Synchronous buck converter with adjustable output voltage.

These alternative models offer similar voltage regulation capabilities and can be chosen based on specific requirements and design constraints.

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