Tiny audio amp produces 1.9 W from 5 V

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1 About The Author

1.1 Ibrar Ayyub

Description

The PAM8905 is a high efficiency Class

–

audio

power amplifier with

an integrated boost converter. It drives up to

1.9

W (1% THD+N) into

8Ω

speaker. With

% typical efficiency, the PAM8905 helps

extend battery life when playing audio.

The b

uilt

–

in boost converter generates the voltage rail for the output

stage. This provides a louder audio output than a stand

–

alone

amplifier connected directly to the battery. It also maintains a

consistent loudness, regardless of battery voltage.

The PAM89

05 features

battery tracking AGC

function which

adjusts

the Class

–

D gain to limit battery current at lower battery voltage

PAM8905 features DC input protection and a

ll outputs are fully

protected against

output

–

output shorts.

The PAM8905 is available

–

WLB1520

–

package

For more detail: Tiny audio amp produces 1.9 W from 5 V

About The Author

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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