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The TPA301 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA301 can deliver 250-mW of continuous power into a BTL 8- load at less than 1% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as cellular communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. This device features a shutdown mode for power-sensitive applications with a quiescent current of 0.15 µA during shutdown. The TPA301 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD MSOP, which reduces board space by 50% and height by 40%.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPA301: 350-mW Mono Audio Power Amplifier datasheet (Rev. E) | 24 Jun 2004 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 06 Jul 2018 | ||
| User guide | TPA301EVM - User Guide (Rev. A) | 17 Apr 2001 |
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A low-voltage bridge-tied load (BTL) audio power amplifier capable of delivering 350-mW to the load. It is characterized at 3.3-V and 5-V, but will operate from 2-V to 5.5-V. To minimize power consumption, this device features a shutdown mode, holding IDD <0.15 µA. Package: 8-pin SOIC.
When plugged into a LaunchPad™ Development Kit, the BOOSTXL-AUDIO Audio BoosterPack™ Plug-in Module can capture audio input from a microphone and output audio through an on-board speaker. Headphone input and output is also supported. This audio input/output stream lets developers (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
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