STMicroelectronics

L4988MDTR

L4988MDTR Description

The L4988MDTR is a fixed output voltage linear regulator designed by STMicroelectronics, aimed at providing stable power management solutions for various electronic applications. This regulator is part of the Power Management IC (PMIC) category and is known for its robust performance and reliability. It features a maximum input voltage of 31V and a fixed output voltage of 5V, capable of delivering a continuous output current of 200mA. The L4988MDTR is housed in a surface-mount 20SO package, making it suitable for compact and space-constrained designs. Despite being marked as obsolete, it remains a viable option for legacy systems and specific applications where its unique features are required.

L4988MDTR Features

• Fixed Output Voltage: The L4988MDTR provides a stable 5V output, ensuring consistent power supply to connected devices.
• High Input Voltage Range: With a maximum input voltage of 31V, it can handle a wide range of input voltages, making it versatile for various power sources.
• Low Dropout Voltage: At a maximum dropout voltage of 0.5V under a 200mA load, it maintains efficiency even when the input voltage is close to the output voltage.
• Low Quiescent Current: A quiescent current of only 150 µA ensures minimal power consumption during operation.
• Control Features: Integrated reset and watchdog functions provide enhanced control and reliability, making it suitable for automotive and industrial applications.
• Protection Features: Over-temperature and short-circuit protection ensure the regulator's longevity and robustness against common failure modes.
• Automotive Grade: Certified for automotive use, the L4988MDTR meets the stringent requirements of the automotive industry, ensuring high reliability and performance in demanding environments.
• Compliance: The regulator is REACH unaffected and RoHS3 compliant, adhering to environmental and safety standards.

L4988MDTR Applications

The L4988MDTR is ideal for applications requiring a stable 5V supply with a moderate current capacity. Its automotive grade certification makes it particularly suitable for automotive electronics, where reliability and robustness are paramount. It is also well-suited for industrial control systems, where its control features and protection mechanisms can enhance system stability and safety. Additionally, the L4988MDTR can be used in consumer electronics, particularly in devices that require a compact and efficient power solution.

Conclusion of L4988MDTR

The L4988MDTR from STMicroelectronics is a reliable and efficient linear regulator designed for applications requiring a stable 5V output. Its low dropout voltage, low quiescent current, and robust protection features make it a standout choice in its category. Despite being marked as obsolete, the L4988MDTR remains a valuable component for legacy systems and specific applications where its unique features are essential. Its automotive grade certification and compliance with environmental standards further enhance its appeal for demanding industrial and automotive applications.