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LM4871MX

LM4871MX Description

The LM4871MX from National Semiconductor is a high-performance Class AB audio power amplifier belonging to the Boomer® series. Designed for surface-mount applications, it delivers 3W of output power into a 3Ω load from a 2V to 5.5V supply, making it ideal for portable and battery-powered audio systems. This IC integrates shutdown mode and thermal protection, ensuring efficient power management and reliability under demanding conditions. Its compact Bulk package and compliance with ECCN EAR99 and HTSUS 8542.33.0001 make it suitable for global commercial and industrial use.

LM4871MX Features

• High Output Power: 3W per channel into 3Ω, enabling robust audio performance in space-constrained designs.
• Wide Supply Range (2V–5.5V): Optimized for low-voltage operation, compatible with Li-ion, NiMH, or USB-powered devices.
• Integrated Protection: Features thermal shutdown and short-circuit protection to safeguard against overheating and faults.
• Low-Power Shutdown Mode: Reduces quiescent current to minimal levels, extending battery life in portable applications.
• Surface-Mount Design: Compact footprint for PCB space efficiency, ideal for modern consumer electronics.

LM4871MX Applications

The LM4871MX excels in portable audio systems, including:

• Mobile Phones & Tablets: Enhances speaker output without excessive power drain.
• Bluetooth Speakers: Delivers high-fidelity sound in compact, battery-operated designs.
• Gaming Headsets: Provides clear audio amplification with minimal distortion.
• IoT Devices: Suitable for smart home gadgets requiring reliable, low-voltage audio amplification.

Conclusion of LM4871MX

The LM4871MX stands out for its efficiency, protection features, and compact form factor, making it a top choice for battery-powered audio applications. Its Class AB architecture ensures high-quality sound reproduction, while its thermal and shutdown protections enhance durability. Whether for consumer electronics or industrial audio solutions, this amplifier combines performance with versatility, meeting the demands of modern audio design.