LM2574YN

Product Overview

Category: Voltage Regulator
Use: LM2574YN is a step-down voltage regulator that provides a regulated output voltage from an unregulated input voltage. It is commonly used in power supply applications to provide a stable and reliable voltage for electronic circuits.
Characteristics: The LM2574YN is known for its high efficiency, wide input voltage range, and compact package. It is available in a TO-220 package and can handle a maximum output current of 0.5A.
Essence: The essence of LM2574YN lies in its ability to efficiently regulate voltage and provide a stable power source for various electronic devices.
Packaging/Quantity: The LM2574YN is typically packaged in a standard TO-220 package and is available in various quantities depending on the supplier.

Specifications

• Input Voltage Range: 4.75V to 40V
• Output Voltage Range: 1.23V to 37V
• Maximum Output Current: 0.5A
• Efficiency: Up to 80%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LM2574YN has the following pin configuration: 1. Vin (Input Voltage) 2. GND (Ground) 3. Vout (Output Voltage) 4. Feedback

Functional Features

• Wide Input Voltage Range: The LM2574YN can accept a wide range of input voltages, making it suitable for various applications.
• High Efficiency: With an efficiency of up to 80%, the LM2574YN minimizes power loss and heat generation.
• Overcurrent Protection: The device includes overcurrent protection to safeguard against excessive current draw.

Advantages and Disadvantages

Advantages: - Wide input voltage range - High efficiency - Compact package - Overcurrent protection

Disadvantages: - Limited maximum output current (0.5A)

Working Principles

The LM2574YN operates on the principle of pulse-width modulation (PWM) to regulate the output voltage. When the input voltage exceeds the desired output voltage, the internal control circuitry adjusts the duty cycle of the PWM signal to maintain a constant output voltage.

Detailed Application Field Plans

The LM2574YN is commonly used in the following applications: - DC-DC converters - Battery chargers - LED drivers - Industrial power supplies

Detailed and Complete Alternative Models

Some alternative models to LM2574YN include: - LM2596 - LM2940 - LM317

In conclusion, the LM2574YN is a versatile and efficient voltage regulator that finds widespread use in various electronic applications due to its wide input voltage range, high efficiency, and compact package.

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