PAM8403 Audio Amplifier IC Chip (THD24H01)

High-Efficiency Audio Performance: PAM8403 Class-D Amplifier IC

The PAM8403 is a high-performance, filter-less Class-D stereo audio amplifier integrated circuit designed for space-saving and battery-efficient applications. This standalone IC provides 3W+3W dual-channel output with exceptionally high efficiency and low electromagnetic interference (EMI).

As a filter-less architecture, the PAM8403 allows the device to drive speakers directly, eliminating the need for bulky low-pass output filters and reducing both system cost and PCB footprint. It is the perfect choice for portable electronics, DIY audio repairs, and embedded sound systems where high-quality audio is required from a minimal power source (2.5V to 5.5V).

Key Features:

• Filter-less Class-D Architecture: Enables direct speaker connection, reducing component count and saving board space.

• High Efficiency: Superior power management allows for longer battery life in portable devices compared to traditional Class-AB amplifiers.

• Low Noise & Distortion: Features low Total Harmonic Distortion plus Noise (THD+N) for clear, crisp audio playback.

• Built-in Protection: Integrated thermal shutdown and short-circuit protection ensure the longevity of the chip and connected components.

• Compact Integration: Optimized for 4-Ohm or 8-Ohm speakers, delivering powerful sound from a tiny silicon footprint.

Technical Specifications:

• Operating Voltage: 2.5V to 5.5V DC

• Output Power: 3W per channel (at 5V input into 4-Ohm load)

• Amplifier Class: Class-D (Stereo)

• Efficiency: Typically up to 90%

• Pin Configuration: 16-Pin SOP Package

• Quiescent Current: Low standby current for energy-saving performance

• THD+N: 0.11% (typical)

Ideal For: Portable Speakers, Handheld Gaming Consoles, Laptop Audio Repairs, DIY Audio Projects, and Smartphone Docking Stations.