The LM2575HVS-15, from Texas Instruments, is a robust and highly efficient voltage regulator designed to address a wide range of power supply requirements. This easy-to-use regulator integrates all the functions required for a switching buck (step-down) voltage regulator capable of driving a 1A load with excellent line and load regulation.

Key Features

• Output Voltage: The LM2575HVS-15 provides a fixed output voltage of 15V, which is ideal for applications requiring a stable DC supply from higher voltage sources.
• High Efficiency: With its switch-mode design, it offers a high efficiency of up to 90%, making it suitable for battery-powered devices where energy conservation is critical.
• Wide Input Voltage Range: It operates over a wide input voltage range from 4.5V to 60V, accommodating various input sources and transient conditions.
• Thermal Shutdown and Current Limit: In-built thermal shutdown and current limit protections safeguard the device and the load from over-temperature and over-current conditions.
• Frequency: The regulator operates at a fixed frequency of 52 kHz, which allows for a reasonable balance between efficiency and the size of external components.
• Package: Offered in a TO-263 package, the LM2575HVS-15 is designed for space-constrained applications while ensuring good thermal performance.

Applications

The LM2575HVS-15 is versatile and can be used in various applications, including but not limited to:

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

Design Support

Texas Instruments provides comprehensive design support for the LM2575HVS-15 with a wealth of resources, including datasheets, application notes, and design tools. Engineers can access the TI website for simulation models and the WEBENCH® Design Center to simplify the design process and accelerate product development.