This reference design delivers an envelope-tracking power supply circuit for mid-power audio power amplifier (PA) applications with TPS43061 boost controller. By adding an audio envelope signal to the FB pin, the boost converter's output voltage can change in accordance with the envelope of the audio signal. The boost converter provides a dynamically changing supply voltage to the PA. Thus, the PA can always work at high efficiency in the output power range.
| Output voltage options | TIDA-050024.1 |
|---|---|
| Vin (Min) (V) | 2.7 |
| Vin (Max) (V) | 8.4 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 6 |
| Output Power (W) | 72 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Boost- Synchronous |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Envelope-tracking power supply reference design for mid-power audio pwr amp apps | Jan. 29, 2019 |
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