Texas Instruments

LM317AEMPX

LM317AEMPX Description

The LM317AEMPX from Texas Instruments is a high-performance, adjustable linear voltage regulator designed for precision power management applications. With an input voltage range up to 40V and an adjustable output voltage from 1.25V to 37V, this regulator delivers a robust 1.5A output current, making it suitable for a wide array of industrial and consumer electronics. Packaged in a compact SOT-223-4 surface-mount form factor, the LM317AEMPX is optimized for space-constrained designs while maintaining high efficiency and reliability.

LM317AEMPX Features

• Adjustable Output Voltage: Fine-tuned from 1.25V to 37V via external resistors, offering flexibility for diverse circuit requirements.
• High Current Capability: Supports 1.5A continuous output current with over-current, over-temperature, and short-circuit protection for enhanced system durability.
• Low Quiescent Current: 10 mA typical quiescent current ensures minimal power loss in standby modes.
• Excellent PSRR: 80dB to 65dB (120Hz) power supply rejection ratio minimizes noise and ripple for stable output.
• Wide Operating Temperature Range: Suitable for harsh environments, backed by MSL1 (Unlimited) moisture sensitivity rating.
• RoHS3 & REACH Compliant: Meets stringent environmental and safety standards.

LM317AEMPX Applications

• Industrial Power Supplies: Ideal for factory automation, PLCs, and motor control systems requiring stable, adjustable voltage rails.
• Consumer Electronics: Powers displays, audio amplifiers, and portable devices where efficiency and compactness are critical.
• Automotive Systems: Used in infotainment, sensors, and lighting modules due to its robust protection features.
• Test & Measurement Equipment: Provides precise voltage references for oscilloscopes, multimeters, and lab instruments.
• Renewable Energy Systems: Regulates voltage in solar charge controllers and battery management circuits.

Conclusion of LM317AEMPX

The LM317AEMPX stands out as a versatile, high-reliability linear regulator, combining adjustability, protection features, and compact packaging. Its high PSRR, low quiescent current, and broad voltage range make it superior to fixed-output regulators, while its industrial-grade robustness ensures longevity in demanding applications. As a Last Time Buy product, it remains a trusted choice for legacy and new designs requiring dependable power regulation. Engineers seeking a balance of performance and size will find the LM317AEMPX an optimal solution.