ONSEMI LM317 Linear Voltage Regulator, Adjustable, 500mA, SOT-223-3

The ONSEMI LM317MBSTT3G is a highly versatile adjustable three-terminal positive linear voltage regulator, designed to deliver a robust output of up to 500mA across a wide voltage spectrum from 1.2V to 37V. Its simple design makes it exceptionally user-friendly, requiring only two external resistors to set the desired output voltage precisely, simplifying circuit design and prototyping.

Engineered for reliability, this regulator incorporates comprehensive built-in protection features, including internal current limiting, thermal shutdown, and safe-area compensation for the output transistor. This integrated protection makes it highly robust and essentially blow-out proof, ensuring stable operation under demanding conditions and enhancing the longevity of your electronic projects.

Primary Applications

This component is perfect for a wide variety of power management tasks. It excels as a local, on-card voltage regulator, providing clean and stable power for sensitive circuits. Its flexibility also allows it to form the basis of a simple adjustable switching regulator, a programmable output regulator, or, when configured with a fixed resistor, a precision current regulator for LED drivers or battery charging.

Key Features & Benefits

• Adjustable Output: Easily set any voltage between 1.2V and 37V with two resistors, eliminating the need to stock multiple fixed-voltage regulators.
• Robust Protection: Features internal thermal overload protection and short-circuit current limiting for enhanced safety and durability.
• High-Voltage Capable: Its floating operation design allows for use in high-voltage applications.
• Surface Mount Design: The SOT-223-3 package is designed for efficient surface-mount technology (SMT) assembly on modern PCBs.
• Pb-Free Construction: Manufactured with lead-free materials in compliance with contemporary environmental directives