The RTKA211250DE0000BU board evaluates the RAA211250 (QFN version), a DC/DC synchronous step-down regulator with programmable switching frequency. The RAA211250 supports a wide input voltage range (from 4.5V to 30V) and adjustable output voltage. It delivers up to continuous 5A output current with premium load regulation and line regulation performance.


  • Simple and flexible design
  • 4.5V to 30V VIN range
  • 3.3V output or adjustable
  • 400kHz default or adjustable Fsw 200kHz to 800kHz



  • Industrial power supplies
  • 12V/24V industrial and computing PoL
  • ATM, vending and gaming machines
  • Industrial PC
  • Programmable logic controllers
  • After-market automotive


Document title Document type Type Date Date
PDF 1.21 MB Manual - Development Tools
1 item

Design & Development

Software & Tools

Software Downloads

Software title Software type Type Date Date
ZIP 544 KB PCB Design Files
XLSX 312 KB Software & Tools - Other
2 items