The RTKA214220DR0000BU demonstration board provides a simple platform for demonstrating the RAA214220 20V, 150mA, low-dropout (LDO) linear regulator. The board features convenient connection points for input and output, in addition to Enable. With a small form factor, the board can be integrated into another system as a daughter card or a module.

The RAA214220 is offered in a 5Ld TSOT23 package. The RTKA214220DR0000BU board operates from a supply voltage of 2.5V to 20V DC with the flexibility of regulating different output voltages from 1.2266V to 1.2V at a load up to 150mA.


  • Wide input voltage range 2.5V to 20V
  • Adjustable and accurate output voltage from 1.2266V to 1.2V
  • Excellent line and load regulation
  • Stable with as low as 1μF MLCC output capacitor
  • Integrated fault protections including over-temperature shutdown and current limit



  • Battery-powered equipment
  • MCU power supply
  • Electric meters
  • USB devices
  • Laptop computers and tablets
  • Portable modules and appliances


Document title Document type Type Date Date
PDF 935 KB Manual - Development Tools
PDF 884 KB Datasheet
2 items