The LM317K-TF3-T is an adjustable 3-terminal positive voltage regulator manufactured by Unisonic Technologies Co., Ltd. (UTC). It is capable of supplying in excess of 1.5A over an output voltage range of 1.2V to 37V. This regulator is exceptionally easy to use and requires only two external resistors to set the output voltage.

Applications

• Adjustable power supplies
• Battery chargers
• Current regulators
• Bench power supplies
• Linear regulators for various electronic devices

Features

• Adjustable output voltage from 1.2V to 37V
• Output current in excess of 1.5A
• Internal short-circuit current limiting
• Thermal overload protection
• Output transistor safe-area compensation
• Standard 3-lead transistor package (TO-3)

Benefits

• Provides a flexible and customizable voltage regulation solution.
• Suitable for a wide range of applications with varying voltage requirements.
• Protects the regulator and the load from damage due to short circuits.
• Prevents thermal damage in high-temperature environments.
• Ensures stable and reliable operation under varying load conditions.
• Easy to mount and heatsink due to the standard TO-3 package.

Technical Specifications

The LM317K-TF3-T typically has a line regulation of 0.01%/V and a load regulation of 0.3%. The ripple rejection is typically 80dB. The input voltage range is typically 4.2V to 40V. Refer to the official UTC datasheet for LM317K-TF3-T for precise electrical characteristics, thermal resistance, and application circuit examples.

The regulator is designed to be stable with a wide range of output capacitors. It includes internal protection circuitry to prevent damage from overloads, short circuits, and over-temperature conditions. The TO-3 package provides excellent thermal conductivity, allowing for efficient heat dissipation.