The PAM8403 5V Two-Channel Stereo Mini Class-D 3W+3W Audio Amplifier Original Quality is a highly efficient, filterless Class-D stereo audio amplifier module designed to deliver crisp, noise-free…
The PAM8403 5V Two-Channel Stereo Mini Class-D 3W+3W Audio Amplifier Original Quality is a highly efficient, filterless Class-D stereo audio amplifier module designed to deliver crisp, noise-free sound in low-voltage audio applications. Operating efficiently from a 2.5V to 5.5V DC supply, it provides up to 3W + 3W dual-channel stereo output into 4-ohm speakers when powered by a 5V source.
Featuring Class-D architectural efficiency (up to 90%), this module generates minimal heat and extends battery run-time, making it superior to traditional Class-AB chipsets. It incorporates built-in short-circuit current protection, thermal shutdown, and superior noise suppression (pop-noise reduction) during power-up and power-down cycles.
This amplifier module is widely used in portable Bluetooth speakers, mini soundbars, handheld gaming setups, USB powered speakers, and voice notification hardware. It features a standard pinout interface (L_IN, R_IN, GND, V_CC, L_OUT+/-, R_OUT+/-) that connects effortlessly to breadboards, perfboards, and custom printed circuit boards (PCBs), making it fully compatible with ESP32, ESP8266, Arduino, Raspberry Pi, and DIY audio projects.
| Amplifier IC | PAM8403 Class-D Stereo Audio Chip |
|---|---|
| Output Power | 3W + 3W (4Ω load at 5V supply) |
| Operating Voltage | 2.5V to 5.5V DC (Ideal for 5V USB or single-cell Li-ion batteries) |
| High Efficiency | Up to 90% Class-D power efficiency |
| Low Noise & Distortion | High Signal-to-Noise Ratio (SNR) with built-in pop-noise reduction |
| Low Quiescent Current | Ideal for long-lasting battery-powered electronics |
| Integrated Protection | Thermal shutdown and short-circuit current protection |
| Compact Footprint | Miniature PCB design suitable for tight enclosures |
What is the operating voltage?
2.5V to 5.5V DC (Ideal for 5V USB or single-cell Li-ion batteries).
Is it compatible with Arduino and ESP32?
Yes. It works with Arduino, ESP32, ESP8266, Raspberry Pi projects.
Can I buy the PAM8403 5V Two-channel Stereo Mini Class-D 3W+3W Audio Amplifier in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
