LM2575-5.0BWM

Product Overview

Category

The LM2575-5.0BWM 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
• Maximum Output Current: 1A
• Efficiency: Up to 92%
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-263-7 (D²PAK/TO-263)

Packaging/Quantity

The LM2575-5.0BWM is typically available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

The LM2575-5.0BWM has the following specifications:

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 5.0V
• Output Current: Up to 1A
• Line Regulation: ±0.5% (Typical)
• Load Regulation: ±0.5% (Typical)
• Switching Frequency: 52 kHz (Typical)
• Dropout Voltage: 1.2V (Typical)
• Quiescent Current: 10 mA (Typical)
• Shutdown Current: 50 µA (Typical)
• Thermal Shutdown Protection
• Short Circuit Protection

Pin Configuration

The LM2575-5.0BWM has the following pin configuration:

```

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| | --| VIN GND|-- --| VOUT FB |-- --| SW NC |-- |___________| ```

• VIN: Input Voltage
• GND: Ground
• VOUT: Output Voltage
• FB: Feedback Pin
• SW: Switching Pin
• NC: No Connection

Functional Features

The LM2575-5.0BWM offers the following functional features:

1. Wide Input Voltage Range: The product can accept input voltages ranging from 4.75V to 40V, making it suitable for various applications.
2. High Efficiency: With an efficiency of up to 92%, the LM2575-5.0BWM minimizes power loss and maximizes energy conversion.
3. Thermal Shutdown Protection: The regulator includes a built-in thermal shutdown feature that protects the device from overheating.
4. Short Circuit Protection: The LM2575-5.0BWM is equipped with short circuit protection, safeguarding the circuit from damage in case of a short circuit.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile application.
• High efficiency reduces power dissipation.
• Built-in thermal shutdown protection prevents overheating.
• Short circuit protection ensures circuit safety.

Disadvantages

• Limited output current capacity (up to 1A).
• Requires external components for proper operation.

Working Principles

The LM2575-5.0BWM operates as a step-down switching voltage regulator. It uses a pulse width modulation (PWM) control scheme to regulate the output voltage. The input voltage is stepped down to the desired output voltage using an internal switch and an inductor. The feedback pin monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output.

Detailed Application Field Plans

The LM2575-5.0BWM finds applications in various fields, including but not limited to:

1. Power Supply Modules: It can be used to provide regulated power supply in electronic devices such as microcontrollers, sensors, and communication modules.
2. Automotive Electronics: The LM2575-5.0BWM can be employed in automotive applications to regulate voltage levels for various components, including lighting systems, infotainment systems, and engine control units.
3. Industrial Control Systems: It is suitable for use in industrial control systems to ensure stable power supply for PLCs (Programmable Logic Controllers), motor drives, and other critical equipment.

Detailed and Complete Alternative Models

1. LM2574-5.0: This model offers similar functionality with a slightly lower input voltage range of 4.5V to 40V.
2. LM2596-5.0: This alternative provides a higher output current capability of up to 3A but operates at a lower efficiency compared to the LM2575-5.0BWM.
3. LM317T: Although not a switching regulator, the LM317T is a popular linear voltage regulator that can provide a regulated 5.0V output with a wide input voltage range.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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