STMicroelectronics

L9777B13TR

L9777B13TR Description

The L9777B13TR is a high-performance linear regulator designed by STMicroelectronics, a leading manufacturer in the power management integrated circuit (PMIC) domain. This device offers an adjustable output voltage range from 4.9V to 5.1V, making it highly versatile for various applications. With a maximum input voltage of 31V and an output current capability of 600mA, the L9777B13TR is well-suited for systems requiring stable and reliable power delivery. The regulator features a dropout voltage of 1.5V at 50mA, ensuring efficient operation even under low input-to-output voltage differentials. Its quiescent current of 200 µA and a power supply rejection ratio (PSRR) of 55dB at 100Hz further enhance its performance in noise-sensitive applications.

L9777B13TR Features

The L9777B13TR boasts several key features that set it apart from similar models in the market:

• Adjustable Output Voltage: The regulator provides an adjustable output voltage range from 4.9V to 5.1V, offering flexibility to meet specific application requirements.
• High Input Voltage Tolerance: With a maximum input voltage of 31V, the L9777B13TR can handle a wide range of input voltages, making it suitable for diverse power supply environments.
• Low Dropout Voltage: The maximum dropout voltage of 1.5V at 50mA ensures efficient operation, even when the input voltage is close to the output voltage.
• Low Quiescent Current: A quiescent current of 200 µA minimizes power consumption, making the device ideal for battery-powered and energy-efficient applications.
• High PSRR: The regulator offers a power supply rejection ratio of 55dB at 100Hz, effectively reducing ripple and noise in the output voltage.
• Protection Features: The L9777B13TR includes over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability in various operating conditions.
• Surface Mount Packaging: The device is available in a surface mount package, facilitating easy integration into compact and high-density designs.
• Compliance and Reliability: The L9777B13TR is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance. It also has a moisture sensitivity level (MSL) of 3, suitable for standard manufacturing processes.

L9777B13TR Applications

The L9777B13TR is well-suited for a variety of applications due to its versatile features and robust performance:

• Consumer Electronics: Ideal for portable devices, such as smartphones, tablets, and laptops, where stable power delivery and low power consumption are critical.
• Industrial Equipment: Suitable for industrial control systems, sensors, and actuators that require reliable power supply and protection features.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment where high input voltage tolerance and low dropout voltage are essential.
• Automotive Systems: Applicable in automotive electronics, such as infotainment systems and electronic control units, due to its wide input voltage range and protection features.
• Medical Devices: Ideal for medical equipment where low noise and high reliability are paramount, such as diagnostic devices and patient monitoring systems.

Conclusion of L9777B13TR

The L9777B13TR from STMicroelectronics is a highly versatile and reliable linear regulator designed for a broad range of applications. Its adjustable output voltage, high input voltage tolerance, low dropout voltage, and low quiescent current make it an excellent choice for systems requiring efficient and stable power delivery. The inclusion of over-current, over-temperature, and short-circuit protection ensures robustness and reliability, while its surface mount packaging and compliance with environmental standards facilitate easy integration into modern designs. Whether used in consumer electronics, industrial equipment, telecommunications, automotive systems, or medical devices, the L9777B13TR offers a high-performance solution that meets the demands of today's advanced power management requirements.