onsemi

LM317MDTX

LM317MDTX Description

The LM317MDTX is a linear voltage regulator from onsemi, designed to provide a positive, adjustable output voltage with a wide range of input voltages. This device is housed in a DPAK package, suitable for surface-mount applications. It features an adjustable output voltage ranging from 1.2V to 37V, making it highly versatile for various electronic systems. With a maximum input voltage of 40V and an output current capability of 500mA, the LM317MDTX is ideal for applications requiring precise voltage regulation. The regulator includes protection features such as over-current, over-temperature, and short-circuit protection, ensuring reliable operation under various conditions. Despite being marked as obsolete, the LM317MDTX remains a robust choice for designers seeking a reliable and flexible voltage regulation solution.

LM317MDTX Features

• Adjustable Output Voltage: The LM317MDTX offers an adjustable output voltage from 1.2V to 37V, providing flexibility to meet the specific needs of various applications.
• High Input Voltage Range: With a maximum input voltage of 40V, this regulator can handle a wide range of input sources, enhancing its versatility.
• Output Current Capability: The device supports an output current of up to 500mA, making it suitable for applications requiring moderate power delivery.
• Protection Features: Integrated over-current, over-temperature, and short-circuit protection ensure the regulator operates safely and reliably under adverse conditions.
• Low Quiescent Current: The regulator features a low quiescent current of 10mA, minimizing power consumption during operation.
• High PSRR: The LM317MDTX boasts a high power supply rejection ratio (PSRR) of 80dB at 120Hz, effectively filtering out noise from the input supply.
• Wide Operating Temperature Range: The device operates reliably within a temperature range of 0°C to 125°C (TJ), making it suitable for industrial and automotive applications.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the LM317MDTX is suitable for environments with varying humidity levels.
• Compliance: The regulator is REACH unaffected and classified under ECCN EAR99, ensuring compliance with environmental and export regulations.

LM317MDTX Applications

The LM317MDTX is well-suited for a variety of applications where precise voltage regulation is essential. Some specific use cases include:

• Power Supplies: Ideal for designing adjustable power supplies in laboratory and industrial settings.
• Battery Chargers: Provides stable voltage regulation for charging various types of batteries.
• Consumer Electronics: Suitable for applications such as portable devices, where adjustable voltage regulation is required.
• Automotive Electronics: The wide operating temperature range and robust protection features make it suitable for automotive applications.
• Industrial Control Systems: Reliable voltage regulation for control systems and instrumentation.

Conclusion of LM317MDTX

The LM317MDTX from onsemi is a versatile and reliable linear voltage regulator that offers adjustable output voltage, high input voltage range, and robust protection features. Despite being marked as obsolete, its technical specifications and performance benefits make it a valuable component for various applications. The device's low quiescent current, high PSRR, and wide operating temperature range further enhance its suitability for demanding environments. For designers seeking a flexible and reliable voltage regulation solution, the LM317MDTX remains a compelling choice.