Overview

Description

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 maximum 2A load. The output is adjustable with external feedback resistors anywhere from 0.9V up to 5.5V-V DROPOUT.

The RAA214020 has a low output noise of 6.3μVRMS typical and high PSRR which makes it well-suited for post-regulation in low-noise applications.

The operating quiescent current is typically 195μA and drops to a couple nanoamps typical at room temperature when in shutdown making it great for portable applications.

The LDO features ±1.5% output voltage accuracy (over line, load, and temperature), input UVLO with hysteresis, enable control, internal current limit, thermal shutdown protection with hysteresis, power-good indication, and fast start-up. Additionally, the LDO is stable with a minimum 22μF ceramic output capacitor and is available in a 10 Ld 3mm x 3mm DFN package great for compact system boards.

Features

  • 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

Comparison

Applications

Applications

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

Documentation

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
7 items

Design & Development

Boards & Kits

Boards & Kits

Models

Videos & Training

Ultra-Low Noise LDOs for Sensitive Loads

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