PAM8403 Class‑D Audio Amplifier Module

Overview

PAM8403 ultra‑low power Class‑D amplifier, 3W per channel (5V). High efficiency (~90%), no heatsink needed. Ideal for portable speakers.

Key Features

• Output: 3W × 2 (at 5V, 4Ω)
• Supply: 2.5–5.5V
• High efficiency (~90%)
• No heatsink needed

Specifications

• Supply Voltage: 2.5–5.5V

Dimensions & Weight

• Length: ~25 mm
• Width: ~18 mm
• Weight: ~5 g

Package Includes

• 1 × PAM8403 Amplifier Module

Applications

• Portable speakers and audio projects
• IoT audio playback
• Battery‑powered audio devices