PMP9774, Envelope-Tracking Power Supply Reference Design for Audio Power Amplifiers with TPS61088
Diseño de referencia usando la pieza TPS61088RHLR de Texas Instruments
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Para productos finales
- Audio Dock
- Wearable Electronics
Descripción
- PMP9774, Envelope-Tracking Power Supply Reference Design for Audio Power Amplifiers with TPS61088. This reference design delivers an envelope-tracking power supply circuit for audio power amplifier (PA) with TPS61088. By adding an audio envelope signal to the FB pin, the TPS61088 output voltage can change in accordance with the envelope of the audio signal. So the TPS61088 provides a dynamically changing supply voltage to the PA. Thus the PA can always keep high efficiency in the whole output power range
Características clave
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Conversion TypeDC to DC
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Input Voltage2.7 to 4.2 V
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Output Voltage5.5 V
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Output Current2 A
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Output Power11 W
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TopologyBoost- Synchronous
Piezas destacadas (2)
| Número de pieza | Fabricante | Tipo | Descripción | |||
|---|---|---|---|---|---|---|
|
OPA4377AIPW | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Quad Low Noise Amplifier R-R I/O 5.5V 14-Pin TSSOP Tube | AÑADIR AL CARRITO | |
|
TPS61088RHLR | Texas Instruments | DC to DC Converter and Switching Regulator Chip | Conv DC-DC 2.7V to 12V Synchronous Step Up Single-Out 4.5V to 12.6V 3A 20-Pin VQFN EP T/R | AÑADIR AL CARRITO | |