The RAA214020 is an ultra-low noise, high-PSRR, low-dropout voltage regulator. The LDO operates from an input voltage range of 2.7V to 5.5V and can source a max 2A load. The output is adjustable with external feedback resistors above 0.9V.


  • Input Voltage Range: 2.7V to 5.5V
  • Max Output Current: 2A
  • Max Dropout Voltage: 540mV at 2A
  • Low RMS output noise: 6.3μVRMS (10Hz to 100kHz)
  • Output Voltage Adjustable: 0.9V to 5.5V-VDROPOUT
  • High PSRR
  • Output Voltage Accuracy: ±1.5% over line, load, and temperature





  • High Speed Analog: VCO, ADC, DAC, LVDS
  • Clock and Timing
  • RF and Wireless
  • IoT and Smart Utilities
  • 4G and 5G Telecom


Type Title Date
Datasheet PDF 2.65 MB
Brochure PDF 5.49 MB 日本語
Product Advisory PDF 414 KB
Application Note PDF 868 KB
Application Note PDF 193 KB
Application Note PDF 509 KB
Application Note PDF 397 KB
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Design & Development

Boards & Kits

Boards & Kits


Ultra-Low Noise LDOs for Sensitive Loads

Learn how the ultra-low noise RAA214020 and RAA214023 LDOs deliver high-performance for noise-sensitive applications.