onsemi

LM317LBDR2

LM317LBDR2 Description

The LM317LBDR2 is a high-performance, adjustable linear voltage regulator from onsemi, designed to deliver a stable output voltage with a wide range of input conditions. This device is part of the Power Management Integrated Circuit (PMIC) category, offering a robust solution for various electronic applications. The LM317LBDR2 features an adjustable output type, capable of providing a minimum output voltage of 1.2V and a maximum output voltage of 37V, making it suitable for a wide range of voltage requirements. With a maximum input voltage of 40V and an output current capacity of 100mA, this regulator ensures reliable performance in diverse operating environments.

The LM317LBDR2 is housed in an 8-SOIC package, which is ideal for surface-mount applications, providing a compact and efficient solution for space-constrained designs. The regulator includes essential protection features such as over-current protection, over-temperature protection, and short-circuit protection, ensuring safe operation and longevity. Additionally, the device has a quiescent current of 10 mA and a power supply rejection ratio (PSRR) of 80dB at 120Hz, contributing to its high performance and stability.

LM317LBDR2 Features

• Adjustable Output Voltage: The LM317LBDR2 offers an adjustable output voltage ranging from 1.2V to 37V, providing flexibility to meet various application requirements.
• High Input Voltage Range: With a maximum input voltage of 40V, this regulator can handle a wide range of input conditions, making it suitable for different power supply scenarios.
• Low Quiescent Current: The device features a low quiescent current of 10 mA, which is beneficial for applications where power consumption is a critical consideration.
• High PSRR: A power supply rejection ratio of 80dB at 120Hz ensures minimal noise and ripple on the output voltage, contributing to stable and clean power delivery.
• Protection Features: Over-current, over-temperature, and short-circuit protections safeguard the regulator and connected components from potential damage.
• Surface-Mount Package: The 8-SOIC package is suitable for surface-mount applications, providing a compact and efficient solution for modern electronic designs.
• Moisture Sensitivity Level: The MSL level of 1 (Unlimited) indicates that the device is not sensitive to moisture, making it suitable for a wide range of manufacturing processes.

LM317LBDR2 Applications

The LM317LBDR2 is well-suited for a variety of applications where a stable and adjustable voltage supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and other portable electronics where a stable and adjustable voltage supply is crucial.
• Industrial Equipment: Suitable for industrial applications where reliable power management is essential, such as in control systems, sensors, and instrumentation.
• Medical Devices: The regulator's stability and protection features make it suitable for medical equipment where precise power control is necessary.
• Automotive Electronics: The wide input voltage range and robust protection features make the LM317LBDR2 a reliable choice for automotive applications, including infotainment systems and electronic control units.

Conclusion of LM317LBDR2

The LM317LBDR2 from onsemi is a versatile and reliable linear voltage regulator, offering a wide range of technical specifications and performance benefits. Its adjustable output voltage, high input voltage range, and low quiescent current make it suitable for a variety of applications, from consumer electronics to industrial and medical devices. The inclusion of essential protection features ensures safe and stable operation, while the surface-mount package provides a compact solution for modern designs. Despite being marked as obsolete, the LM317LBDR2 remains a valuable component for applications requiring a robust and flexible power management solution.