The L7987 from STMicroelectronics is a highly efficient, robust power converter designed to meet the needs of a wide range of applications. This step-down switching regulator is capable of delivering up to 3 A of continuous output current with excellent line and load regulation. It is a perfect choice for systems that require a stable and reliable power supply with a high switching frequency.

Key Features

• High-Efficiency Operation: The L7987 integrates a 60 V, 0.25 Ω high-side MOSFET that ensures high efficiency, which is critical for reducing energy consumption and heat generation in compact designs.
• Wide Input Voltage Range: With an input voltage range from 4.5 V to 61 V, the L7987 is versatile and can handle a variety of supply voltages, making it suitable for automotive, industrial, and consumer applications.
• Adjustable Switching Frequency: The switching frequency can be adjusted from 250 kHz to 1.5 MHz, allowing designers to optimize the size of the external components and the performance of the converter to suit specific application needs.
• Thermal Protection: The device includes thermal shutdown and current limiting features to protect against over-temperature and over-current conditions, ensuring the longevity and reliability of both the power converter and the system it powers.

Applications

The L7987 is highly suited for a range of applications that require a dependable and flexible power supply solution. It is commonly used in:

• Automotive systems
• Industrial power supplies
• Consumer electronics
• Telecommunication devices
• Point of Load (POL) conversions

Design Support

STMicroelectronics provides extensive design support for the L7987, including evaluation boards, application notes, and simulation tools to assist engineers in optimizing their power supply designs. The device is available in a compact VFQFPN 10 package with exposed pad up (EP) for improved thermal dissipation, ensuring that it can be integrated into space-constrained applications without compromising on performance.