STMicroelectronics

LD2981ABM50TR

LD2981ABM50TR Description

The LD2981ABM50TR is a high-performance linear voltage regulator from STMicroelectronics, designed to provide a stable 5V output with a maximum output current of 100mA. This device is ideal for applications requiring a low-dropout, fixed-output voltage regulator with excellent load regulation and transient response.

LD2981ABM50TR Features

• Fixed Output Voltage: The LD2981ABM50TR provides a fixed 5V output, simplifying design and reducing the need for external components.
• Low Dropout Voltage: With a maximum dropout voltage of 0.375V at 100mA, this regulator maintains high efficiency even under heavy load conditions.
• Low Quiescent Current: The device consumes only 150µA in quiescent mode, making it suitable for battery-powered applications.
• Excellent PSRR: A 63dB power supply rejection ratio at 1kHz ensures minimal noise coupling from the input to the output.
• Over Current and Over Temperature Protection: Built-in protection features safeguard the device from damage due to overcurrent and overheating.
• RoHS3 Compliance: The LD2981ABM50TR is compliant with RoHS3, making it suitable for environmentally friendly applications.
• REACH Unaffected Status: This device is not affected by REACH regulations, ensuring uninterrupted supply and use in the European market.

LD2981ABM50TR Applications

The LD2981ABM50TR is well-suited for a variety of applications where a stable 5V output is required:

1. Portable Electronics: Due to its low quiescent current and small form factor, the LD2981ABM50TR is ideal for battery-powered devices such as smartphones, tablets, and wearables.
2. Industrial Control Systems: The device's low dropout and excellent load regulation make it suitable for powering microcontrollers and other sensitive components in industrial control systems.
3. Automotive Applications: The LD2981ABM50TR can be used to provide a stable 5V supply for automotive electronics, such as infotainment systems and sensor interfaces.

Conclusion of LD2981ABM50TR

The LD2981ABM50TR from STMicroelectronics is a versatile, low-dropout linear voltage regulator that offers excellent performance and reliability. Its fixed 5V output, low quiescent current, and built-in protection features make it an ideal choice for a wide range of applications, from portable electronics to industrial control systems. With its RoHS3 compliance and REACH unaffected status, the LD2981ABM50TR is also an environmentally friendly option for designers looking to meet strict regulatory requirements.