Description

The LM317T is an industry-standard, three-terminal adjustable positive voltage regulator capable of supplying more than 1.5A of load current over an output voltage range of 1.2V to 37V. Its design philosophy centers on simplicity and flexibility; by utilizing just two external resistors in a resistive divider configuration, users can precisely select the desired output voltage. This versatility effectively eliminates the need to stock a wide variety of fixed-voltage regulators.

Beyond its ease of use, the LM317T incorporates high-quality internal protection features, including current limiting, thermal shutdown, and safe operating area compensation, ensuring reliable performance even under adverse conditions. Whether you are designing for laboratory power supplies, battery chargers, or localized voltage regulation in complex systems, the LM317T provides a dependable and robust solution.


Key Features

  • Wide Output Range: Adjustable from 1.2V to 37V, covering most standard logic and analog voltage requirements.
  • High Output Current: Capable of delivering over 1.5A of load current.
  • Simple Implementation: Requires only two external resistors to set the output voltage.
  • Internal Protection: Integrated current limit, thermal overload, and safe-area protection for maximum reliability.
  • Excellent Regulation: Features tight line (0.01%) and load (0.1%) regulation for stable output performance.

Application

  • Adjustable Power Supplies: The go-to choice for building versatile benchtop or lab power supplies.
  • Battery Charging Circuits: Provides steady, adjustable voltage rails necessary for various battery chemistries.
  • Local On-Card Regulation: Efficiently manages power distribution across complex PCB designs.
  • Programmable Output Circuits: Ideal for applications where the voltage rail needs to be tuned or controlled via external feedback.

Package Includes

  • 2 x LM317T Adjustable Voltage Regulator (Through Hole)

Technical Specifications

Parameter Specification
Device LM317T
Output Voltage 1.2V to 37V (Adjustable)
Max Output Current 1.5A
Input Voltage 3V to 40V
Package Type Through Hole
Operating Temp 0°C to 125°C
Dimensions 10 x 4.5 x 15.3 mm
Shipping Weight 0.01 kg

Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters, please refer to the official device datasheet.

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