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PAM8403DR-H

DIOPAM8403DR-H

Diodes Incorporated
Audio Amplifiers 3W STEREO FILTERLESS CLASS-D AUDIO AMP
2,328 in stock

Overview

The PAM8403DR-H is a 3W, stereo, filterless Class-D audio amplifier designed for high-efficiency audio reproduction in space-constrained applications. It operates from a 2.5V to 5.5V supply and provides a low-component-count solution by eliminating the need for bulky LC output filters. This amplifier achieves up to 90 percent efficiency and includes integrated short-circuit protection and thermal shutdown.

Why Choose This Part

The filterless architecture reduces overall system cost and board space by removing the output LC filter. It features low THD+N and superior low noise performance, combined with a 20uA shutdown current for power-sensitive designs.

Applications

Portable Entertainment Devices
Ideal for portable DVD players and handheld gaming machines where high efficiency extends battery life.
LCD Monitors and Projectors
Small footprint allows for integration into slim display housings while providing 3W per channel output.
Notebook Computers
Low quiescent current and small SOP-16 packaging make it suitable for laptop internal speakers.
Portable Speakers
Enables compact Bluetooth or wired speaker designs with minimal external filtering components.

Key Specifications

Type Class D
Features Depop, Short-Circuit and Thermal Protection
Output Type 2-Channel (Stereo)
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154", 3.90mm Width)
Voltage - Supply 2.8V ~ 5.5V
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 16-SOP
Max Output Power x Channels @ Load 3W x 2 @ 4Ohm

Getting Started

To evaluate this IC, look for PAM8403 breakout boards which provide 2.54mm headers for input, power, and speaker outputs. Ensure adequate decoupling capacitors are placed near the VDD pin and follow datasheet layout guidelines regarding thermal pads to manage heat at 3W power levels.