STMicroelectronics

L5986ATR

L5986ATR Description

The L5986ATR from STMicroelectronics is a high-efficiency 2.5A adjustable buck (step-down) DC-DC switching regulator designed for demanding power management applications. It features a wide input voltage range of 2.9V to 18V, making it suitable for both low-voltage and industrial-level power supplies. The output voltage is adjustable from 0.6V to 18V, providing flexibility for various load requirements. With a switching frequency range of 250kHz to 1MHz, it balances efficiency and component size, enabling compact designs. Packaged in an 8HSOP (Tape & Reel), it is optimized for surface-mount assembly and complies with ROHS3 and REACH environmental standards.

L5986ATR Features

• Wide Input Range (2.9V–18V): Supports diverse power sources, including batteries and industrial rails.
• Adjustable Output (0.6V–18V): Precision voltage regulation for sensitive loads.
• High Efficiency (Non-Synchronous): Optimized for cost-sensitive designs without sacrificing performance.
• Programmable Frequency (250kHz–1MHz): Enables trade-offs between efficiency and external component size.
• 2.5A Continuous Output Current: Robust enough for powering microcontrollers, FPGAs, and peripherals.
• Compact 8HSOP Package: Space-saving and suitable for automated PCB assembly.
• Active Product Status & Industry Compliance: Reliable for long-term designs with ROHS3, REACH, and ECCN EAR99 certifications.

L5986ATR Applications

The L5986ATR excels in applications requiring stable, adjustable power with high efficiency, such as:

• Industrial Automation: Powering sensors, PLCs, and control systems from unregulated DC sources.
• Consumer Electronics: Voltage regulation for set-top boxes, routers, and portable devices.
• Automotive Accessories: Non-critical systems like infotainment or lighting modules.
• Embedded Systems: Reliable power for single-board computers (SBCs) and IoT devices.
• Battery-Powered Equipment: Efficient step-down conversion for Li-ion or multi-cell battery packs.

Conclusion of L5986ATR

The L5986ATR stands out as a versatile, high-performance buck regulator, combining wide input range, adjustable output, and robust current delivery in a compact package. Its programmable switching frequency and compliance with industry standards make it ideal for cost-sensitive yet performance-critical designs. Whether for industrial, consumer, or embedded applications, this regulator ensures efficient, reliable power conversion with minimal external components.