PMP9774, Envelope-Tracking Power Supply Reference Design for Audio Power Amplifiers with TPS61088

Reference Design using part TPS61088RHLR by Texas Instruments

Enlarge
PMP9774 Image
PMP9774 Block Diagram
PMP9774 Schematic
Image 1 / 3

Manufacturer

Texas Instruments
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

Associated Documents

For End Products

  • Audio Dock
  • Wearable Electronics

Description

  • 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

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    2.7 to 4.2 V
  • Output Voltage
    5.5 V
  • Output Current
    2 A
  • Output Power
    11 W
  • Topology
    Boost- Synchronous

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
OPA4377AIPW Texas Instruments Operational Amplifiers - Op Amps Op Amp Quad Low Noise Amplifier R-R I/O 5.5V 14-Pin TSSOP Tube Buy
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 Buy

Research and Events

What is Low-Side Current Sensing?

Learning about one of the tried-and-true methods of current sensing.

9 years ago

MUX-Friendly Rail-to-Rail Op Amp with Versatility: Texas Instruments' OPA4196ID

MUX-Friendly Rail-to-Rail Op Amp with Versatility: Texas Instruments' OPA4196ID

8 years ago

Easy-to-Use, Robust TSV912AIDR Op Amp from Texas Instruments

The TSV912AIDR form Texas Instrument is easy-to-use and robust op amp.

8 years ago
Sorry, your filter selection returned no results.

Connect with Electronic Components

Facebook LinkedIn Instagram YouTube
Contact Us

Contact and Support

Programs and Partners

Product Categories

Manufacturers

Verticals & Trends

We've updated our privacy policy. Please take a moment to review these changes. By clicking I Agree to Arrow Electronics Terms Of Use  and have read and understand the Privacy Policy and Cookie Policy.

See Short Policy

Our website places cookies on your device to improve your experience and to improve our site. Read more about the cookies we use and how to disable them here. Cookies and tracking technologies may be used for marketing purposes.
By clicking “Accept”, you are consenting to placement of cookies on your device and to our use of tracking technologies. Click “Read More” below for more information and instructions on how to disable cookies and tracking technologies. While acceptance of cookies and tracking technologies is voluntary, disabling them may result in the website not working properly, and certain advertisements may be less relevant to you.
We respect your privacy. Read our privacy policy here