onsemi

LM2574N-3.3

LM2574N-3.3 Description

The LM2574N-3.3 is a fixed-output voltage regulator designed for a wide range of applications requiring a stable 3.3V output. Manufactured by onsemi, this regulator is part of the DC Switching Voltage Regulators category. It features a maximum input voltage of 40V and a minimum input voltage of 4.75V, ensuring compatibility with various power sources. The regulator is capable of delivering a consistent 500mA of output current, making it suitable for moderate power applications.

The LM2574N-3.3 operates with a switching frequency of 52kHz, which allows for efficient power conversion and reduced component size. It supports both positive and negative output configurations, providing flexibility in circuit design. The regulator is housed in a through-hole package, specifically an 8-pin DIP (Dual In-line Package), which is ideal for applications where through-hole mounting is preferred.

Despite its obsolescence status, the LM2574N-3.3 remains a reliable choice for many applications due to its robust performance and compatibility with existing designs. It is REACH unaffected, ensuring compliance with environmental regulations. The regulator is also moisture sensitivity level 1 (unlimited), making it suitable for a variety of environmental conditions.

LM2574N-3.3 Features

• Fixed Output Voltage: The LM2574N-3.3 provides a stable 3.3V output, making it ideal for applications requiring a precise voltage level.
• Wide Input Voltage Range: With a maximum input voltage of 40V and a minimum of 4.75V, this regulator can accommodate a broad range of input sources.
• High Output Current: Capable of delivering up to 500mA, the LM2574N-3.3 can power a variety of electronic devices and components.
• Flexible Output Configuration: Supports both positive and negative output configurations, enhancing its versatility in different circuit designs.
• Efficient Switching Frequency: Operating at 52kHz, the regulator ensures efficient power conversion and allows for the use of smaller inductors and capacitors.
• Through-hole Mounting: The 8-pin DIP package is suitable for through-hole mounting, which is often preferred in industrial and DIY applications.
• Environmental Compliance: REACH unaffected and moisture sensitivity level 1 (unlimited), ensuring compliance with environmental regulations and suitability for various operating conditions.

LM2574N-3.3 Applications

The LM2574N-3.3 is well-suited for a variety of applications where a stable 3.3V output is required. Some specific use cases include:

• Embedded Systems: Ideal for powering microcontrollers, sensors, and other low-power components in embedded systems.
• Consumer Electronics: Suitable for applications such as portable devices, where a reliable and efficient power supply is essential.
• Industrial Control: Can be used in industrial control systems to provide stable power to critical components.
• Telecommunications: Provides a stable power source for various telecom equipment requiring a 3.3V supply.
• Automotive Electronics: Suitable for automotive applications where a reliable and efficient power supply is crucial.

Conclusion of LM2574N-3.3

The LM2574N-3.3 is a robust and versatile fixed-output voltage regulator that offers reliable performance in a wide range of applications. Its wide input voltage range, high output current capability, and efficient switching frequency make it an excellent choice for powering various electronic devices. Despite its obsolescence status, the LM2574N-3.3 remains a valuable component for engineers and designers due to its compatibility with existing systems and its ability to provide a stable 3.3V output. Its through-hole mounting and environmental compliance further enhance its suitability for diverse applications.