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PAM8301AAF

DIOPAM8301AAF

Diodes Incorporated
Amplifier IC 1-Channel (Mono) Class D SOT-23-6
3,364 in stock
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Overview

The PAM8301AAF is a 1.5W, filterless Class D mono audio amplifier designed for portable applications operating between 2.5V and 5.5V. Its high efficiency and low quiescent current of 4mA make it an ideal choice for battery-powered devices where space and power consumption are critical. The device includes built-in short-circuit protection and thermal shutdown to ensure long-term reliability in compact enclosures.

Why Choose This Part

This amplifier eliminates the need for an external LC filter, significantly reducing BOM cost and PCB area. It features a very low shutdown current of only 1uA and provides integrated protection against thermal overloads and short circuits. The SOT-23-6 package allows for extremely dense layouts in mobile electronics.

Applications

Portable Wireless Speakers
Provides high-efficiency mono audio output for small Bluetooth or Wi-Fi speakers without requiring bulky LC output filters.
Handheld Communication Devices
Well-suited for walkie-talkies and two-way radios due to its compact SOT-23-6 footprint and 1.5W output.
Speakerphones
Used in hands-free phone systems to drive internal speakers with minimal EMI interference.
Industrial Alert Systems
Ideal for battery-backed alarm systems or voice-prompt modules in industrial equipment.

Key Specifications

Type Class D
Features Depop, Short-Circuit and Thermal Protection
Output Type 1-Channel (Mono)
Mounting Type Surface Mount
Package / Case SOT-23-6
Voltage - Supply 2.5V ~ 5.5V
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package SOT-23-6
Max Output Power x Channels @ Load 1.5W x 1 @ 8Ohm

Getting Started

To implement the PAM8301AAF, place a 10uF decoupling capacitor close to the VDD pin and ensure the input signal is AC-coupled via a series capacitor to block DC offsets. The filterless architecture allows direct connection to an 8-ohm speaker, but keep trace lengths short to minimize EMI. Designers should refer to the datasheet for specific gain-setting resistor values and PCB layout recommendations to maximize thermal dissipation.

Also Consider

TPA2005D1-Q1 TITexas Instruments - An AEC-Q100 qualified alternative for automotive applications requiring similar 1.4W mono Class D performance.
MAX98357A Maxim Integrated / Analog Devices - Features an integrated I2S DAC, allowing for a direct digital-to-audio path without an external codec.
PAM8302A DIODiodes Incorporated - A higher power version capable of delivering 2.5W into 4-ohm loads for applications needing more volume.