Texas Instruments

LM317T/LF01  

Linear & Switching Voltage Regulators

LM317T/LF01 Description

The LM317T/LF01 is a high-performance linear voltage regulator designed by Texas Instruments, offering adjustable output voltage and current capabilities. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a TO220-3 package, making it suitable for surface-mount applications. The LM317T/LF01 is designed to provide a stable and reliable power supply with a wide range of input voltages up to 37V and a maximum output current of 1.5A. It features a positive output configuration and an adjustable output voltage range from 1.25V to 37V, providing flexibility for various power management needs.

LM317T/LF01 Features

The LM317T/LF01 stands out with its comprehensive set of features tailored for robust performance and reliability:

• Adjustable Output Voltage: The regulator offers an adjustable output voltage range from 1.25V to 37V, providing flexibility to meet diverse application requirements.
• High Input Voltage Range: With a maximum input voltage of 37V, the LM317T/LF01 can handle a wide range of input sources, making it suitable for various power supply designs.
• High Output Current: Capable of delivering up to 1.5A of output current, this regulator is well-suited for applications requiring significant power.
• Protection Features: The device includes over-current, over-temperature, and short-circuit protection, ensuring safe operation and longevity.
• Low Quiescent Current: The regulator operates with a low quiescent current of 10mA, minimizing power consumption during idle periods.
• High PSRR: With a Power Supply Rejection Ratio (PSRR) of 64dB at 120Hz, the LM317T/LF01 effectively filters out noise from the input power supply, ensuring clean and stable output voltage.
• Wide Operating Temperature Range: The operating temperature range of 0°C to 125°C makes the LM317T/LF01 suitable for use in a variety of environmental conditions.
• Compliance and Packaging: The device is REACH unaffected and RoHS3 compliant, ensuring environmental safety. It is packaged in a tube, facilitating easy handling and storage.

LM317T/LF01 Applications

The LM317T/LF01 is ideal for a broad range of applications due to its versatility and robust performance:

• Power Supplies: Suitable for designing adjustable power supplies for laboratory, industrial, and consumer electronics.
• Battery Chargers: Ideal for applications requiring precise voltage regulation for charging batteries.
• Instrumentation: Provides a stable power source for sensitive electronic instruments and measurement devices.
• Telecommunications: Can be used in telecom equipment where reliable power management is crucial.
• Consumer Electronics: Ideal for powering devices such as radios, amplifiers, and other consumer electronics that require adjustable voltage regulation.

Conclusion of LM317T/LF01

The LM317T/LF01 from Texas Instruments is a versatile and reliable linear voltage regulator that offers adjustable output voltage and current capabilities. Its wide input voltage range, high output current, and comprehensive protection features make it an excellent choice for a variety of power management applications. The device's low quiescent current and high PSRR ensure efficient and stable performance, while its compliance with environmental standards and robust packaging make it a preferred choice for engineers and designers in the electronics industry.

LM317T/LF01 Documents

Download datasheets and manufacturer documentation for LM317T/LF01

Images :

Mechanical Outline Drawing      

PCN :

Process Change Notification (PDF)      

Product Catalogs :

Low Dropout Regulators Quick Reference Guide (Rev. P)      

Application Notes :

High Voltage Adjustable Power Supplies       LB-46 A New Production Technique for Trimming Voltage Regulators      

SPICE Models :

LM317-N PSpice Transient Model       LM317-N Unencrypted PSpice Transient Model