ON Semiconductor LM2576D2T-ADJR4 - Voltage Regulator IC

The LM2576D2T-ADJR4 from ON Semiconductor is a highly efficient, monolithic integrated circuit voltage regulator designed for ease of use in a wide range of applications. This step-down (buck) regulator provides all the active functions necessary for a step-down (buck) switching regulator and is capable of driving a 3A load with excellent line and load regulation.

Key Features:

• Adjustable Output Voltage: This device offers an adjustable output voltage range from 1.23V to 37V, which allows for a high degree of flexibility in designing a power supply that meets specific requirements.
• High Efficiency: With a typical efficiency of up to 77%, the LM2576D2T-ADJR4 is an excellent choice for designs where power efficiency is a critical concern, such as portable and battery-powered applications.
• 3A Output Current: The regulator can deliver a continuous output current of up to 3A, making it suitable for a broad range of applications, from simple power supplies to complex industrial systems.
• Thermal Shutdown and Current Limit Protection: Built-in safety features such as thermal shutdown and current limit protection safeguard the device and the system from damage due to overheating and overcurrent conditions.
• 52 kHz Fixed Frequency Internal Oscillator: The fixed frequency oscillator reduces the need for external components and simplifies the design process.
• TO-263 Package: The device comes in a TO-263 package, which is known for its robustness and good thermal performance, ensuring reliable operation even under high power dissipation scenarios.

Applications:

The LM2576D2T-ADJR4 is versatile and can be used in a variety of applications, including:

• Simple high-efficiency step-down regulators
• Positive to negative converter (Buck-Boost)
• Pre-regulator for linear regulators
• Battery chargers
• DC-DC converters for distributed power supply systems
• Power supplies for instruments and control systems

With its ease of use and a comprehensive set of features, the LM2576D2T-ADJR4 from ON Semiconductor is an ideal solution for designers looking for a reliable and efficient voltage regulator IC.