ONSEMI LM317LDR2G Adjustable Linear Voltage Regulator 1.2V-37V / 100mA, SOIC-8

The ONSEMI LM317LDR2G is a versatile, adjustable 3-terminal positive linear voltage regulator, designed to supply over 100mA across a wide output voltage range of 1.2V to 37V. Renowned for its simplicity and reliability, this regulator is exceptionally easy to implement, requiring only two external resistors to set the precise output voltage required for your circuit.

For robust protection, the device incorporates internal current limiting, thermal shutdown, and safe-area compensation for the output transistor. These integrated safeguards make the regulator essentially blowout-proof, enhancing the durability and safety of your electronic designs. It operates in a floating configuration, which makes it suitable for high-voltage applications where the regulator sits above ground.

Key Features & Applications

The LM317LDR2G is ideal for a wide variety of power management roles. It is perfectly suited for local, on-card regulation, eliminating the need for multiple fixed-voltage regulators and simplifying inventory. By adding a few external components, it can be configured as a programmable output regulator or even as a precision current regulator, offering great design flexibility.

Its compact SOIC-8 surface-mount package makes it an excellent choice for modern, space-constrained PCB designs. The combination of a wide operating temperature range, from 0°C to 125°C, and comprehensive internal protection ensures stable performance in demanding environments.

Specifications

• Regulator Type: Adjustable Positive Linear Voltage Regulator
• Output Current: Maximum 100mA
• Adjustable Output Voltage Range: 1.2V to 37V
• Maximum Input Voltage: 40V
• Key Protections: Internal current limiting, thermal overload protection, and safe-area compensation
• Package: 8-pin SOIC (Surface-Mount)
• Mounting: Surface Mount Technology (SMT)