The P9225-R is a high-efficiency wireless power receiver (Rx) that uses magnetic inductive charging technology to convert an AC power signal from a resonant tank into a regulated DC output voltage ranging from 4.5V to 5.5V. The integrated, low RDSON synchronous rectifier and ultra-low dropout linear (LDO) regulator offers high efficiency making the product ideally suited for battery operated applications.

The P9225-R includes an industry-leading 32-bit ARM® Cortex®-M0 microprocessor offering a high level of programmability.  The P9225-R also features a programmable current limit and a patented over-voltage protection function eliminating the need for additional capacitors generally used by the receivers, and minimizing the external component count and cost. Together with the P9038-R transmitter (Tx), the P9225-R is a complete wireless power system solution for power applications up to 5W.

The P9225-R is available in a 52-WLCSP package, and it is rated for 0°C to 85°C ambient operating temperature range.


  • Single-chip solution supporting up to 5W applications
  • WPC-1.2.4 compliant, PMA SR1 compatible
  • Patented over-voltage protection clamp eliminating external capacitors
  • 82% peak DC-to-DC efficiency with P9038-R Tx
  • Fully integrated synchronous rectifier with low RDS(ON) switches
  • Programmable output voltage: 4.5V to 5.5V
  • Embedded 32-bit ARM® Cortex®-M0 processor
  • Dedicated remote temperature sensing
  • Power transfer LED indicator
  • Programmable current limit
  • Active-low enable pin for electrical on/off
  • Active-high End of Charge input pin
  • Open-drain interrupt flag
  • Support for I²C interface
  • 0°C to +85°C ambient operating temperature range
  • 52-WLCSP (2.64 x 3.94 mm; 0.4mm pitch)

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
P9225-RAHGI Active AHG52 WLCSP 52 I Yes Cut Tape
P9225-RAHGI8 Active AHG52 WLCSP 52 I Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
P9225-R Datasheet Datasheet PDF 1.12 MB
User Guides & Manuals
P9225-R Layout Guide Guide PDF 1.28 MB
Application Notes & White Papers
Wireless Power Transmission Resonance LC Calculations Application Note PDF 3.74 MB
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency White Paper PDF 627 KB
IDT WLCSP Implementation Guidelines Application Note PDF 662 KB
Wireless Power Products Overview 日本語, 简体中文 Overview PDF 1.16 MB
P9225-R-EVK Schematic Schematic PDF 23 KB
P9225-R-EVK BOM Engineering XLSX 12 KB
P9225-R-EVK Orcad Schematic (v2p1) Schematic ZIP 243 KB
P9225-R-EVK Allegro Layout File (v2p1) Engineering ZIP 64 KB
P9225-R Dual Mode Wireless Charging Receiver for 5W Applications Product Brief PDF 188 KB

Boards & Kits

Part Number Title Type Company
P9038-R-EVK Wireless Power Transmitter Reference Solution
P9225-R-EVK Wireless Power Receiver Evaluation Kit for P9225-R