DFRobot
3W mini audio stereo amplifier
This compact stereo amplifier module from DFRobot is based on the PAM8403 chip, delivering 3W per channel into 4Ω speakers with over 90% efficiency. It's a f...
Get notified when back in stock
This compact stereo amplifier module from DFRobot is based on the PAM8403 chip, delivering 3W per channel into 4Ω speakers with over 90% efficiency. It's a fully functional two-channel audio amplifier with an integrated sleep mode that can be controlled via a microcontroller.
Operating from 3.6–5.5V DC, the module is well-suited for battery-powered audio projects, portable speakers, and embedded sound systems where space and power efficiency are critical.
Key Features
- Stereo Output – Two independent 3W audio channels
- High Efficiency – Greater than 90% efficiency (Class D)
- Sleep Mode – Integrated low-power sleep function, controllable via pin
- Compact Size – Just 15.5 × 24mm
- PAM8403 Chip – Proven filterless Class D amplifier IC
Specifications
- Power Supply – 3.6–5.5V DC
- Output Power – 3W + 3W (4Ω load)
- Efficiency – >90%
- Board Size – 15.5 × 24mm
- Amplifier IC – PAM8403
Ideal For
- DIY portable speakers
- Embedded audio projects
- Arduino and microcontroller sound output
- Battery-powered audio applications
Package Contents
- 1× 3W mini audio stereo amplifier module
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
Find this product in
Audio & Video
Brands
Supplier page — dfrobot.com
Supplier Description · 570.5 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
