LM2576T-3.3

The LM2576T-3.3 is a step-down (buck) voltage regulator designed for efficient conversion of higher input voltages to a stable output voltage of 3.3V. This IC is part of the LM2576 series, which features a fixed output voltage variant, with the 3.3V version catering specifically to applications requiring this voltage level.
Key features include a maximum output current capability of 3A, high efficiency (up to 90%), and a wide input voltage range of 4.5V to 40V. The LM2576T-3.3 operates with minimal external components, simplifying circuit design. It includes built-in thermal shutdown and current limiting for protection against faults.
Typically used in power supplies for microcontrollers, sensors, and other digital devices, this regulator is well-suited for applications where space and efficiency are critical. The device comes in various packages, including TO-220, making it versatile for different thermal management needs. Overall, the LM2576T-3.3 is a reliable choice for creating stable 3.3V power supplies in various electronic projects.

Equivalent products to the LM2576T-3.3 include the LM2576-3.3, LM2596-3.3, and L78S33. Other alternatives are the MIC2940-3.3, SPX1117-3.3, and TPS54330-3.3. Ensure compatibility in specifications such as output current, voltage, and thermal performance when selecting substitutes.

The LM2576T-3.3 is a step-down (buck) voltage regulator designed for efficient DC-DC conversion. Key features include:
1. Output Voltage: Fixed output of 3.3V.
2. Input Voltage Range: Supports input voltages from 4.0V to 40V.
3. Output Current: Capable of delivering up to 3A of continuous load current.
4. High Efficiency: Efficiency up to 75% or more, reducing heat generation.
5. Built-in Protection: Includes thermal shutdown and current limiting to protect against overload conditions.
6. Simple Design: Requires minimal external components, facilitating easy integration into designs.
7. Switching Frequency: Operates at a fixed frequency of 52 kHz, which helps in reducing the size of the output inductor and capacitor.
8. TO-220 Package: Available in a robust TO-220 package for effective heat dissipation.
These features make the LM2576T-3.3 suitable for a variety of applications, including power supplies for microcontrollers and other electronic devices.

The LM2576T-3.3 is a step-down (buck) voltage regulator from the LM2576 series, specifically designed to provide a regulated output of 3.3V. It comes in a TO-263 package with a total of 5 pins.
Here’s a concise pinout:
1. Input (Vin): Connects to the input voltage supply.
2. Ground (GND): Common ground connection.
3. Output (Vout): Provides the regulated output voltage (3.3V).
4. Feedback (Vfb): Used for voltage feedback to maintain the desired output voltage.
5. Switching (SW): The output of the internal switch that connects to the inductor.
This device is capable of delivering up to 3A of output current, with built-in thermal shutdown and current limit features for protection.

The LM2576T-3.3 is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its high-performance analog and embedded processing solutions. The company serves a wide range of industries, including automotive, industrial, personal electronics, and communications.
Texas Instruments is particularly recognized for its innovation in the field of power management, signal processing, and microcontrollers. The LM2576 series, including the LM2576T-3.3, is a popular choice for voltage regulation applications, offering step-down (buck) converter capabilities that efficiently reduce voltage levels in electronic circuits. TI's extensive portfolio and commitment to research and development make it a key player in the semiconductor industry, contributing to advancements in technology and electronic design solutions worldwide.

The LM2576T-3.3 is a step-down (buck) voltage regulator primarily used in various applications that require efficient power conversion. Key application areas include:
1. Power Supply: For microcontrollers and digital circuits needing a stable 3.3V output.
2. Battery-Powered Devices: To efficiently convert higher battery voltages to 3.3V.
3. LED Drivers: For powering LED circuits that require constant voltage.
4. Consumer Electronics: In devices like routers and sensors.
5. Automotive Electronics: For powering 3.3V components in vehicles.
Its efficiency and thermal performance make it suitable for space-constrained applications.

The LM2576T-3.3 is typically packaged in a TO-263 or TO-220 form factor. These packages provide efficient heat dissipation and are commonly used for power management applications.