NOTICE - The following device(s) are recommended alternatives:
NRND - No Recommended Replacements Available
The RAA210850 is not recommended for new designs and has no alternative product available.

The RAA210850 is a pin-strap configurable 50A step-down PMBus-compliant DC/DC power supply module that integrates a digital PWM controller, synchronous MOSFETs, power inductor, and passive components. Only input and output capacitors are needed to finish the design. Because of its thermally enhanced HDA packaging technology, the module can deliver up to 50A of continuous output current without the need for airflow or additional heat sinking. The RAA210850 simplifies configuration and control of Renesas digital power technology while offering an upgrade path to full PMBus configuration through the pin-compatible ISL8272M. The RAA210850 operates with the ChargeMode™ control architecture, which responds to a transient load within a single switching cycle. The RAA210850 can be easily programmed with pin-strap resistors to set the output voltage, switching frequency, input UVLO, soft-start/stop, and device addresses. PMBus can be used to monitor voltages, currents, temperatures, and fault status. The RAA210850 is supported by PowerNavigator™ software, a Graphical User Interface (GUI), that can configure modules for desired solutions. The RAA210850 is available in a low profile, compact, (18mmx23mmx7. 5mm) fully encapsulated, thermally enhanced HDA package, suitable for automated assembly by standard surface mount equipment.


  • Wide input voltage range: 4.5V to 14V
  • Up to 96% efficiency
  • Programmable output voltage
    • 0.6V to 5V output voltage settings
    • ±1.2% VOUT accuracy over line, load, and temperature
  • PMBus compliant communication interface
  • Pin-strap mode for standard settings
    • VOUT, switching frequency, input UVLO, soft-start/stop, and external synchronization
  • Real-time telemetry for VIN, VOUT, IOUT, temperature, duty cycle, and switching frequency
  • Complete overvoltage, undervoltage, current and temperature protections with fault logging
  • PowerNavigator supported
  • Thermally enhanced HDA package

tuneProduct Options

Part Number Part Status Pkg. Type Carrier Type Buy Sample
Obsolete Module Tray
Obsolete Module Reel


Title language Type Format File Size Date
Datasheets & Errata
star RAA210850 Datasheet Datasheet PDF 2.41 MB
User Guides & Manuals
ISLUSBEVAL1Z User's Manual Manual - Development Tools PDF 257 KB
RTKA2108502H00000BU User Guide Manual - Development Tools PDF 1.79 MB
PMBus Interface Install Guide - Win7 x86 and x64 Manual - Hardware PDF 693 KB
Application Notes & White Papers
Eliminating Power Supply Design Complexity with Simple Digital Modules 日本語, 简体中文 White Paper PDF 564 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PLC21013 - End of Life Notice Product Life Cycle Notice PDF 215 KB


Title language Type Format File Size Date
PowerNavigator™ Software v5.4.139 Software & Tools - Software ZIP 96.49 MB
Production Configuration Utility v5.4.139 Software & Tools - Other ZIP 120.25 MB
PMBus Conversion Software Tool Library ZIP 54.93 MB
ZLHLD Software v2.9 Library ZIP 119.19 MB
CompZL Software v1.5.1 Library ZIP 59.25 MB
PowerPilot Software GUI Library ZIP 435 KB
USB Drivers for the ZLUSBEVAL1Z (Windows 7) Library ZIP 1.75 MB
USB Drivers for the ZLUSBEVAL1Z (Windows XP/Vista) Library ZIP 166 KB
RTKA2108502H00000BU Design Files PCB Design Files ZIP 2.23 MB

select_allSoftware & Tool Pages

Title Type Description Company
PowerNavigator Software Software Package Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface. Renesas

memoryBoards & Kits

Part Number Title Type Company
RTKA2108252H00000BU RAA210825 Evaluation Board Evaluation Renesas
RTKA2108332H00000BU RAA210833 Eval Board Evaluation Renesas
RTKA2108502H00000BU RAA210850 Evaluation Board Evaluation Renesas
RTKA2108702H00000BU RAA210870 Evaluation Board Evaluation Renesas
RTKA2109252H00000BU RAA210925 Evaluation Board Evaluation Renesas