The PAM8403 is a stereo audio power amplifier that offers Class-AB performance with Class-D efficiency. It utilizes a low-noise, filterless architecture, eliminating the need for traditional Class-D output low-pass filters. Requiring minimal external components, it saves significant PCB space and system cost, making it an ideal choice for portable applications.
The PAM8403 delivers up to 3W of power at over 85% efficiency, and features system shutdown and mute control functions. Its specialized circuit architecture enhances noise immunity and reduces radio frequency (RF) interference.
Key Features
Filterless Class-D amplifier with low quiescent current and low EMI
3W output power (delivers up to 3W at 4Ω load and 5V supply)
High efficiency up to 90%
Low THD+N, low noise
Short circuit protection
Thermal shutdown protection
Minimal external components required, saving space and cost
Package style: SOP-16 (Lead-Free / RoHS compliant)
Shutdown current: 16μA
Standby current: 6.3mA
Applications
LCD TVs, Monitors
Cellular phones / Hands-free speakerphones
Notebook computers
Portable DVD players, Handheld game consoles
PAM8403 3W Filterless Class-D Stereo Audio Power Amplifier Silkore
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