The PTX30W is a powerful and efficient NFC Listener system-on-chip for NFC wireless charging applications together with data communication. The PTX30W features a single-chip solution for NFC-based wireless charging systems which harvest power, handle wireless charging protocol, and charge a Lithium-ion battery. While eliminating external discrete components, the superior RF performance of the PTX30W enables small antenna design, fast charging and allows flexible placement of Poller and Listener antennas.


  • Highly integrated NFC Wireless Charging Listener device
    • Highly efficient Active Rectifier
    • Up to 1W harvesting power
    • RF interface according to NFC-Forum Type 2 Tag
    • Li-Ion battery charger with charging current from 5mA to 250mA
    • MCU LDO with 1.8V or 3.3V output, up to 50mA
    • Embedded power negotiation logic
  • Designed according to NFC Forum Wireless Charging standard
  • NFC Custom NDEF feature
  • Standalone operation (optional external Host MCU)
  • I2C slave interface
  • 2x configurable GPIOs
  • On-chip overvoltage limiter circuit



  • Stylus
  • Smart ring
  • Smart glasses
  • Wearable devices
  • Hearing aids
  • Medical sensors


Document title Document type
Date Date
PDF 2.05 MB Datasheet
PDF 767 KB Product Brief
PDF 1.53 MB Application Note
PDF 4.79 MB Application Note
PDF 2.85 MB Application Note
PDF 2.75 MB Application Note
PDF 1.19 MB Application Note
PDF 1.43 MB Manual - Development Tools
PDF 330 KB Overview
PDF 298 KB Product Brief
10 items

Design & Development

Boards & Kits

Boards & Kits



PTX30W Fully Integrated NFC Wireless Charging Listener

PTX30W is the industry's first fully integrated listener for NFC wireless charging and it brings unmatched benefits to the charging system.

  • Compact standalone NFC wireless charging listener integrating NFC tag with digital interface, power harvesting, and battery charger 
  • Fully  autonomous listener operation with on-chip power regulation control
  • Protocol following NFC Forum wireless charging specifications 

Learn more about the innovative PTX30W and the evaluation kit for NFC Wireless Charging.