STEVAL-ISA081V1 - STMicroelectronics

The STEVAL-ISA081V1 from STMicroelectronics is a highly efficient, product evaluation board designed to showcase the features and capabilities of the L7986A switching regulator. This regulator is a step-down monolithic power switching regulator capable of delivering up to 3 A of current to the load, with excellent line and load regulation.

Key Features

• Efficient Power Conversion: The L7986A regulator operates at a switching frequency of up to 1.5 MHz, allowing the use of small-sized filter components, resulting in a compact and space-saving design.
• Wide Input Voltage Range: The device is capable of operating from an input voltage range of 4.5 V to 38 V, making it suitable for a variety of industrial and consumer applications where the input voltage can vary.
• Adjustable Output Voltage: The output voltage can be set from 0.8 V to VIN, providing flexibility for powering different loads.
• Thermal Protection: It includes thermal shutdown and current limiting features to protect the circuit in adverse conditions.
• Low Standby Current: The L7986A features a low consumption mode, which is activated by pulling the EN pin low, reducing the standby current and making it suitable for battery-powered applications.

Applications

The STEVAL-ISA081V1 is versatile and can be used in a wide range of applications, including:

• Industrial power systems
• Consumer electronics
• Networking equipment
• Embedded systems
• Point of Load conversions

Design and Layout

The evaluation board comes with a pre-assembled L7986A regulator in a VFQFPN 16L package, providing a ready-to-use solution for testing and prototyping. The layout is optimized to facilitate measurement access points and provide a clear visual of the component's configuration. This allows for easy evaluation of the L7986A's performance and simplifies the design process for engineers looking to integrate the regulator into their own projects.