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

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active WLCSP 52 I Yes Cut Tape
Active WLCSP 52 I Yes Reel


Title language 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
IDT WLCSP Implementation Guidelines Application Note PDF 662 KB
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency White Paper PDF 627 KB
PCN# : WP2002-01 TSMC Fab 6 Qualified as Alternate Fab Location Product Change Notice PDF 752 KB
P9225-R-EVK Allegro Layout File (v2p1) Engineering ZIP 64 KB
P9225-R-EVK BOM Engineering XLSX 12 KB
Wireless Power Products Overview Overview PDF 1.14 MB
P9225-R Dual Mode Wireless Charging Receiver for 5W Applications Product Brief PDF 188 KB
P9225-R-EVK Orcad Schematic (v2p1) Schematic ZIP 243 KB
P9225-R-EVK Schematic Schematic PDF 23 KB

Boards & Kits

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