Texas Instruments

LM317LCPW  

Linear & Switching Voltage Regulators

LM317LCPW Description

The LM317LCPW from Texas Instruments is a low-current, adjustable linear voltage regulator designed for precision voltage regulation in compact, surface-mount applications. Housed in an 8-pin TSSOP package, it delivers an adjustable output voltage range of 1.2V to 32V with a maximum input voltage of 38V and a 100mA output current. This regulator is ideal for low-power designs requiring stable voltage references, featuring low quiescent current (2.5mA) and high PSRR (80dB at 120Hz), ensuring minimal noise and ripple in sensitive circuits.

LM317LCPW Features

• Adjustable Output: Fine-tune voltage from 1.2V to 32V for versatile applications.
• High PSRR (80dB): Superior noise rejection for clean power delivery.
• Robust Protection: Integrated over-current, over-temperature, and short-circuit safeguards.
• Low Quiescent Current (2.5mA): Optimized for energy-efficient designs.
• Wide Operating Temperature (0°C to 125°C): Reliable performance in harsh environments.
• Surface-Mount (TSSOP-8): Compact footprint for space-constrained PCBs.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.

LM317LCPW Applications

• Portable Electronics: Battery-powered devices requiring stable low-current regulation.
• Precision Instrumentation: Sensor interfaces, data acquisition systems.
• Embedded Systems: Microcontroller power supplies, reference voltage generation.
• Consumer Electronics: Audio amplifiers, LED drivers, and low-power displays.
• Industrial Controls: Actuators, PLCs, and automation systems needing reliable voltage regulation.

Conclusion of LM317LCPW

The LM317LCPW stands out as a high-performance, low-current linear regulator with exceptional PSRR and protection features, making it ideal for noise-sensitive and power-constrained designs. Its adjustable output, compact form factor, and compliance with environmental standards ensure versatility across consumer, industrial, and portable applications. While designated as Last Time Buy, its proven reliability and TI’s legacy in voltage regulation make it a trusted choice for legacy and new designs alike.

LM317LCPW Documents

Download datasheets and manufacturer documentation for LM317LCPW

Datasheets :

LM317L Datasheet      

PCN Obsolescence/ EOL :

EOL 25/Sept/2023      

HTML Datasheet :

LM317L Datasheet      

PCN Design/Specification :

Design 22/Feb/2022