STMicroelectronicsLM317D2T-TR Adjustable Voltage RegulatorLinear Regulators

The LM317D2T-TR is an industry workhorse voltage regulator that provides an output voltage depending on a resistor divider network connected between the output and the adjust pin. The LM317’s wide output range of 1.2V to 37V and the high current output of up to 1.5A make the LM317D2T-TR highly appropriate for many power applications including power supplies. The 0.1% line and load regulation combined with the multiple inbuilt protection circuits make the LM317D2T-TR a reliable regulator and the wide temperature operating range of 0°C to 125°C allows the LM317D2T-TR to operate in multiple environment types.

Drawings / Package

      

Key Features

• Wide output voltage range of 1.2 V to 37 V
• Output current up to 1.5 A
• 0.1% load and line regulation
• Multiple internal protection methods
  • Thermal overload
  • Output short circuit
  • Safe operating area

General Applications

• Variable power regulation in power supplies
• Fixed power regulation with use of fixed components
• Eliminate multiple stocking of fixed regulators in inventory
• Compatible with other generic and older LM317 containing hardware

Evaluation Board

No evaluation board is available for the LM317 but the datasheet contains several useful circuits.

LM317D2T-TR Adjustable Voltage Regulator

Control the voltage level of your circuit with this standard LM317D2T-TR linear regulator from STMicroelectronics. This voltage regulation device's single output can produce a current up to 0.4(Typ) A. With an adjustable output that has a voltage of 1.2 to 37 V, this is power management at its best. To produce a constant current at your output, supply your circuit with a load regulation of 0.5% and line regulation of 0.04%/V. This product will be shipped in tape and reel packaging to allow for quick mounting and safe delivery. Its polarity is positive. This voltage regulation device has a minimum operating temperature of 0 °C and a maximum of 125 °C.