Analog Devices Inc. LT304x PSRR Linear Regulators

Analog Devices Inc. LT304x PSRR Linear Regulators are high-performance low dropout regulators with ultralow noise and ultrahigh PSRR architecture for powering noise-sensitive applications. The regulator is designed as a precision current reference followed by a high-performance voltage buffer. The LT304x can be paralleled to further reduce noise, increase output current, and spread heat on the PCB.


  • 0.8μVRMS (10Hz to 100kHz) ultralow RMS noise
  • 2nV/√Hz at 10kHz ultralow spot noise
  • Ultrahigh PSRR
  • 1.8V to 20V input voltage range
  • Single capacitor improves noise and PSRR
  • 100μA SET pin current: ±1% initial accuracy
  • Single resistor programs output voltage
  • 1MHz bandwidth
  • Programmable current limit
  • Low dropout voltage
  • 0V to 15V output voltage range
  • Programmable power good
  • Fast start-up capability
  • Parallelable for lower noise and higher current
  • Precision enable/UVLO
  • Internal current limit with foldback
  • Reverse battery and reverse current protection
  • 12-lead MSOP and 10-lead 3mm × 3mm DFN packages


  • RF Power Supplies
    • PLLs
    • VCOs
    • Mixers
    • LNAs
    • PAs
  • Low noise instrumentation
  • High speed/high precision data converters
  • Medical Applications
    • Imaging
    • Diagnostics
  • Precision power supplies
  • Post-regulator for switching supplies

Technical Articles

  • How to Select the Best Power Solution for RF Signal Chain Phase Noise Performance
    Proper choice of power modules is paramount and can lead to as much as a 10dB improvement of phase noise at 10kHz offset so knowing the correct power solution to choose is important for optimizing your RF signal chain.
  • Designing a 10BASE-T1L Single-Pair Ethernet Condition Monitoring Vibration Sensor
    This article discusses how to design a tiny, shared power and data interface (PoDL) for a CbM sensor, including power supply design, mechanical design, MEMS sensor selection, and software for a complete sensor solution.
  • Negative Linear Regulator Features 0.8µV RMS Noise and 74dB Power Supply Rejection Ratio at 1MHz

Typical Application

Application Circuit Diagram - Analog Devices Inc. LT304x PSRR Linear Regulators
Publicado: 2017-04-24 | Atualizado: 2023-02-17