LM317MABDTG: Adjustable Positive Voltage Regulator, 1.2-37V, 500mA
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The LM317MABDTG is an adjustable, three-terminal positive voltage regulator designed to supply more than 500 mA of output current, with an adjustable output voltage range from 1.2 V to 37 V. This component is particularly noted for its ease of use, requiring only two external resistors to set the output voltage. It incorporates several protective features, including internal current limiting, thermal shutdown, and safe area compensation, which enhance its reliability and prevent potential damage under abnormal conditions.

This voltage regulator finds applications in various scenarios, including local, on-card regulation, and as an adjustable switching regulator. Its ability to function with a fixed resistor between the adjustment and output terminals also allows it to be used as a precision current regulator. The LM317MABDTG is suitable for a wide range of applications, from automotive to other sectors requiring high reliability and performance.

Key Specifications and Features

  • Output Current: In excess of 500 mA
  • Adjustable Output Voltage: 1.2 V to 37 V
  • Internal Thermal Overload Protection
  • Internal Short Circuit Current Limiting
  • Output Transistor Safe-Area Compensation
  • Maximum Input-Output Voltage Differential: 40 V
  • Thermal Resistance, Junction-to-Air: Varies with package
  • Maximum Junction Temperature: +150 °C
  • Line Regulation: 0.01% to 0.04% /V
  • Load Regulation: Varies with output voltage
  • Adjustment Pin Current: 50 to 100 µA

LM317MABDTG Datasheet

LM317MABDTG datasheet (PDF)

LM317MABDTG Substitutes
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Applications

  • Local, on-card regulation
  • Adjustable switching regulators
  • Programmable output regulators
  • Precision current regulators

Category

Voltage Regulator

General information

Voltage regulators are essential components in electronic circuits, ensuring that devices receive stable and consistent voltage levels despite variations in input voltage or load conditions. The LM317MABDTG, an adjustable positive voltage regulator, is capable of supplying over 500 mA of current with an adjustable output voltage range from 1.2 V to 37 V. This versatility makes it suitable for a wide array of applications, from simple power supply circuits to complex programmable systems.

When selecting a voltage regulator, key considerations include output current capability, output voltage range, thermal performance, and protective features. The LM317MABDTG stands out for its ease of use, requiring just two external resistors to set the output voltage, and its robust protective features, including thermal shutdown and current limiting, which safeguard the device under adverse conditions.

The ability to adjust the output voltage across a wide range makes this type of regulator particularly useful for custom electronics projects where standard voltage levels may not be suitable. Additionally, the LM317MABDTG's applications in precision current regulation highlight its versatility beyond traditional voltage regulation roles.

In summary, the LM317MABDTG is a reliable, flexible component for managing power supply requirements in a variety of electronic applications. Its broad output voltage range, coupled with significant protective features, make it an excellent choice for engineers seeking a robust voltage regulation solution.

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