1.2 W audio power amplifier with active low standby mode

The TS4990 is designed for demanding audio applications such as mobile phones to reduce the number of external components.

This audio power amplifier is capable of delivering 1.2 W of continuous RMS output power into an 8 Ω load at 5 V.

An externally controlled standby mode reduces the supply current to less than 10 nA. It also includes an internal thermal shutdown protection.

The unity-gain stable amplifier can be configured by external gain setting resistors.

Key Features

  • Operating range from VCC = 2.2 V to 5.5 V
  • 1.2 W output power at VCC = 5 V, THD = 1%, F = 1 kHz, with 8 Ω load
  • Ultra-low consumption in standby mode (10 nA)
  • 62 dB PSRR at 217 Hz in grounded mode
  • Near-zero pop and click
  • Ultra-low distortion (0.1%)
  • Unity gain stable
  • Available in 9-bump flip-chip, miniSO-8 and DFN8 packages

Circuit Diagram

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Resources

Technical Documentation

Product Specifications
Description Version Size
DS3051 DS3051: 1.2 W audio power amplifier with active-low standby mode 13.1 751 KB
Application Notes
Description Version Size
AN1766 AN1766: TS4990 low voltage audio power amplifier evaluation board user guidelines 3.2 104 KB
Technical Notes & Articles
Description Version Size
TA0314 TA0314: Pop & click in audio amplifiers 2.2 2 MB

Presentations & Training Material

Presentations
Description Version Size
ST offering in Wearable - Analog and Mixed Signal Portfolio 3.0 1 MB

Publications and Collaterals

Brochures
Description Version Size
ST’s solutions for mobile devices 3.2 3 MB

Tools and Software

Evaluation Tools
Product Evaluation Tools
Support & Community


Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
TS4990IQT VDFPN 8 3x3x1.0 Tape And Reel - - Active 0.509 1000 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
TS4990IDT SO-8 Tape And Reel - - Active - - NEC EAR99 CHINA MORE INFO No availability reported, please contact our Sales office
TS4990EIJT Chip Scale Package 0.5mm pitch Tape And Reel - - Active 0.331 1000 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
TS4990IST MSOP/TSSOP 8 Tape And Reel - - Active 0.485 1000 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS4990IQT ActiveVDFPN 8 3x3x1.0IndustrialEcopack3 0 0
TS4990IDT ActiveSO-8IndustrialEcopack3
TS4990EIJT ActiveChip Scale Package 0.5mm pitchIndustrialEcopack3 0 0
TS4990IST ActiveMSOP/TSSOP 8IndustrialEcopack3 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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