Texas Instruments

LM317MDCYRG3

LM317MDCYRG3 Description

The LM317MDCYRG3 from Texas Instruments is a positive adjustable linear voltage regulator designed for surface-mount applications, packaged in a SOT-223 form factor. With an input voltage range up to 40V and an adjustable output from 1.25V to 37V, it delivers a 500mA output current, making it suitable for a variety of low-to-medium power applications. The device features high PSRR (80dB at 120Hz), ensuring stable output even with noisy input supplies. Its low quiescent current (10mA) enhances efficiency in battery-powered systems.

LM317MDCYRG3 Features

• Adjustable Output Voltage (1.25V–37V): Provides flexibility for diverse circuit requirements.
• High Input Voltage Tolerance (40V Max): Suitable for industrial and automotive applications.
• Robust Protection: Includes over-current, over-temperature, and short-circuit protection for enhanced reliability.
• Surface-Mount Package (SOT-223): Compact footprint ideal for space-constrained PCB designs.
• Excellent Line/Load Regulation: Ensures stable performance under varying conditions.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards.
• Low Dropout Voltage: Optimized for efficiency in low-voltage differential applications.

LM317MDCYRG3 Applications

This regulator is ideal for:

• Power Supplies: Adjustable voltage references for embedded systems, test equipment, and instrumentation.
• Battery-Powered Devices: Portable electronics, IoT sensors, and wearables due to low Iq.
• Industrial Controls: Motor drivers, PLCs, and automation systems requiring stable voltage rails.
• Automotive Electronics: Auxiliary power regulation in infotainment and ADAS modules.
• Consumer Electronics: Set-top boxes, routers, and audio amplifiers.

Conclusion of LM317MDCYRG3

The LM317MDCYRG3 stands out as a versatile, reliable, and efficient linear regulator, combining wide input range, adjustable output, and robust protection in a compact SOT-223 package. Its high PSRR and low dropout make it superior to fixed regulators in dynamic environments, while its compliance with RoHS3 and REACH ensures suitability for modern eco-conscious designs. Whether for industrial, automotive, or consumer applications, this regulator delivers precision, durability, and ease of integration.