The LM2576T-3.3/NOPB is a highly reliable, easy-to-use voltage regulator integrated circuit (IC) from Microchip Technology, designed to deliver a fixed output voltage of 3.3V with a maximum output current of up to 3A. This step-down (buck) regulator provides all the active functions necessary for a power supply capable of driving a variety of loads with excellent line and load regulation.

Key Features:

• Output Voltage: Fixed 3.3V with a precision of ±4% over line and load conditions.
• Output Current: Capable of delivering 3A of continuous output current.
• Efficiency: High efficiency up to 92%, which varies depending on input voltage and load conditions.
• Thermal Shutdown and Current Limit: Inbuilt protection features ensure the device operates within safe temperature and current limits.
• Frequency: 52 kHz fixed frequency internal oscillator.
• Voltage Range: Wide input voltage range from 4V to 40V, suitable for a variety of applications.
• Simplicity: Requires minimal external components for operation, simplifying design and reducing overall system cost.
• Package: Available in a TO-220 package that is easy to handle and compatible with standard PCB layouts.

Applications:

The LM2576T-3.3/NOPB is versatile and can be used in a wide array of applications. It is particularly well-suited for simple, high-efficiency power supplies, battery chargers, and voltage regulator modules in consumer electronics, office equipment, and industrial machinery.

Environmental Compliance:

The "NOPB" suffix in the part number indicates that this product is compliant with the RoHS (Restriction of Hazardous Substances) directive, meaning it is free from lead and other harmful substances, making it an environmentally friendly choice for electronic designs.

Conclusion:

With its ease of use, robust protection features, and versatile input voltage range, the LM2576T-3.3/NOPB from Microchip Technology stands out as a reliable solution for a wide range of power supply applications. Its energy-efficient operation and compliance with environmental standards make it a responsible and practical choice for designers looking to create sustainable and cost-effective products.