LM2575HVT-3.3/LF03 - Texas Instruments

The LM2575HVT-3.3/LF03 from Texas Instruments is a robust and versatile step-down voltage regulator that delivers a fixed output voltage of 3.3V. This component is part of the LM2575 series, which is renowned for its easy-to-use and minimal external component designs. The device is an ideal solution for a wide range of applications, including consumer electronics, automotive, and industrial systems that require a stable and efficient power supply.

Key Features

• Output Voltage: Provides a fixed 3.3V output, which is essential for powering low-voltage logic devices and microcontrollers.
• Output Current: Capable of delivering up to 1A of load current, making it suitable for a variety of applications.
• High Efficiency: Features an efficient design with a typical efficiency rating that can exceed 85%, reducing power loss and heat generation.
• Wide Input Voltage Range: Operates with an input voltage range from 4.5V to 60V, accommodating a broad spectrum of power sources.
• Thermal Shutdown and Current Limit: Built-in protection features safeguard the device against excessive temperature and overcurrent conditions, enhancing system reliability.
• Low Standby Current: The quiescent current is low, which is beneficial for battery-powered devices where power conservation is critical.
• 52 kHz Fixed Frequency Internal Oscillator: Reduces the size of external components and simplifies the design process.

Applications

The LM2575HVT-3.3/LF03 is a versatile component that can be used in various applications, including:

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Positive to negative converter (Buck-Boost)

Quality and Reliability

Texas Instruments is known for its commitment to quality and reliability, and the LM2575HVT-3.3/LF03 is no exception. This voltage regulator is designed to meet the rigorous standards required by industrial and automotive applications, ensuring long-term performance and stability.