Texas Instruments

LM317MQKTPR

LM317MQKTPR Description

The LM317MQKTPR is a linear positive adjustable voltage regulator designed by Texas Instruments, offering a versatile solution for a wide range of power management applications. This regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a surface-mount TO252-3 package, making it suitable for compact and efficient designs. Despite being marked as obsolete, the LM317MQKTPR remains a reliable choice for many applications due to its robust performance and compliance with industry standards such as REACH and ROHS3.

LM317MQKTPR Features

• Adjustable Output Voltage: The LM317MQKTPR provides an adjustable output voltage ranging from a minimum of 1.25V to a maximum of 37V, making it highly adaptable to various power requirements.
• High Input Voltage Capability: With a maximum input voltage of 40V, this regulator can handle a wide range of input conditions, ensuring stable operation in diverse environments.
• Output Current: It supports an output current of up to 500mA, which is sufficient for many low to medium power applications.
• Low Quiescent Current: The regulator operates with a quiescent current of only 10mA, contributing to high efficiency and minimal power loss.
• High Power Supply Rejection Ratio (PSRR): The PSRR ranges from 80dB at low frequencies to 65dB at 120Hz, ensuring excellent noise rejection and stable output voltage.
• Protection Features: The LM317MQKTPR includes over-current, over-temperature, and short-circuit protection, enhancing its reliability and safety in operation.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), this regulator is suitable for a variety of manufacturing processes without the need for special handling precautions.
• Compliance: It is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and regulatory standards.

LM317MQKTPR Applications

The LM317MQKTPR is ideal for applications requiring a stable and adjustable power supply. Its adjustable output voltage and high input voltage capability make it suitable for:

• Power Supplies: Ideal for adjustable power supplies in laboratory and industrial settings.
• Battery Chargers: Can be used in battery charging circuits where adjustable voltage is necessary.
• Consumer Electronics: Suitable for powering various consumer electronics that require a stable and adjustable voltage source.
• Industrial Equipment: Applicable in industrial control systems and instrumentation where precise voltage regulation is crucial.

Conclusion of LM317MQKTPR

The LM317MQKTPR, despite its obsolete status, remains a robust and versatile linear voltage regulator. Its adjustable output voltage, high input voltage capability, and comprehensive protection features make it a reliable choice for a variety of applications. The regulator's compliance with industry standards and its low quiescent current further enhance its appeal. While newer models may offer additional features, the LM317MQKTPR continues to provide a cost-effective and reliable solution for power management needs.