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The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.
The unity-gain stable LM4809 can be configured by external gain-setting resistors.
The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode datasheet (Rev. F) | 05 Apr 2013 | |
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 26 Aug 2019 | ||
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 27 Jun 2019 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
| WSON (NGL) | 8 | Ultra Librarian |
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