The LM2576-12WT from Microchip Technology is a highly efficient, monolithic integrated circuit designed for voltage regulation. It is a step-down voltage regulator, also known as a buck converter, capable of driving a 3A load with excellent line and load regulation. The LM2576 series are available in a fixed output voltage of 12V, making the LM2576-12WT a go-to choice for applications requiring a stable 12V supply from higher voltage sources.

Key Features

• Output Voltage: Fixed 12V output with a tolerance of ±4% over line and load conditions.
• Output Current: Capable of delivering 3A output current.
• High Efficiency: Uses a simple external inductor to achieve conversion efficiencies up to 92%.
• Thermal Shutdown and Current Limit: In-built protection features enhance the durability and longevity of the device.
• Wide Input Voltage Range: Can handle input voltages from 40V down to the 12V output level, making it versatile for a range of applications.
• Simple and Few External Components: Requires minimal external components for operation, simplifying design and reducing space.
• 52 kHz Fixed Frequency Internal Oscillator: The fixed frequency simplifies noise filtering in noise-sensitive applications.

Applications

The LM2576-12WT is ideal for a wide array of applications, including but not limited to:

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators for elimination of noise and distribution problems associated with single-point regulation

Quality and Reliability

Microchip Technology ensures that the LM2576-12WT is designed and manufactured to the highest quality and reliability standards. The device is encapsulated in a TO-220 package, known for its robustness and thermal performance, making it suitable for commercial-grade applications requiring a wide operating temperature range.