STMicroelectronics

L7986ATR

The L7986ATR is a high-performance, step-down (buck) switching regulator from STMicroelectronics. It is designed to provide efficient and stable voltage regulation for a wide range of applications. Here's a brief description, features, and applications of the L7986ATR:

Description:

The L7986ATR is a monolithic step-down switching regulator that uses a current-mode control architecture. It is available in a thermally enhanced 16-pin TSSOP (Thin Shrink Small Outline Package) and is designed for high-efficiency power conversion with an operating voltage range of 4V to 40V.

Features:

1. Wide Input Voltage Range: The L7986ATR can handle input voltages from 4V to 40V, making it suitable for a variety of power sources.
2. High Efficiency: The regulator is designed for high efficiency, which can reduce power dissipation and improve overall system performance.
3. Output Voltage Adjustable: The output voltage can be adjusted using an external resistor divider, allowing for customization to meet specific application requirements.
4. Current Limit Protection: The L7986ATR features an overcurrent protection mechanism that limits the output current to a safe level, protecting the device and the load.
5. Thermal Protection: The device includes thermal shutdown protection to prevent damage due to overheating.
6. Soft Start Feature: The soft-start feature minimizes inrush current during power-up, reducing stress on the input power source and the output capacitors.
7. Low Quiescent Current: The L7986ATR has a low quiescent current, which is beneficial for battery-powered applications where power consumption needs to be minimized.
8. Synchronization Capability: The regulator can be synchronized with an external clock signal, allowing it to operate in phase with other regulators in a system.

Applications:

1. Portable Electronics: Due to its high efficiency and low quiescent current, the L7986ATR is well-suited for battery-powered devices like smartphones, tablets, and laptops.
2. Power Supplies: It can be used in compact power supply applications, providing efficient voltage regulation for various electronic devices.
3. Telecommunications: The L7986ATR can be used in power supply circuits for telecommunications equipment, where efficiency and reliability are critical.
4. Industrial Control Systems: The device can be used in industrial control systems where stable and efficient power regulation is required.
5. Medical Devices: The L7986ATR can be used in medical devices that require a stable and regulated power supply with protection features.

The L7986ATR is a versatile and efficient switching regulator that can be used in a wide range of applications where stable and efficient power regulation is required. Its features, such as adjustable output voltage, overcurrent protection, and thermal protection, make it a reliable choice for various electronic systems.