Analog Devices Inc. LT1965 Low Dropout Linear Regulators

Analog Devices Inc. LT1965 Low Dropout Linear Regulators supply 1.1A of output current with a 310mV typical dropout voltage. The devices feature an operating quiescent current of 500µA for the adjustable version, reducing to <1µA in shutdown. Quiescent current is well controlled and doesn't rise in dropout like other regulators. The LT1965 regulators very low output noise makes them ideal for sensitive RF and DSP supply applications.


  • Output Current: 1.1A
  • Dropout Voltage: 310mV
  • Low Noise: 40µVRMS (10Hz to 100kHz)
  • 500µA Quiescent Current (Adjustable Version)
  • Wide Input Voltage Range: 1.8V to 20V
  • No Protection Diodes Needed
  • Controlled Quiescent Current in Dropout
  • Adjustable Output from 1.20V to 19.5V
  • Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V
  • < 1µA Quiescent Current in Shutdown
  • Stable with 10µF Output Capacitor
  • Stable with Ceramic or Tantalum Capacitors
  • Reverse-Battery Protection
  • No Reverse Current
  • Current Limit with Foldback Protection
  • Thermal Limiting
  • 5-Lead TO-220, DD-Pak, Thermally Enhanced 8-Lead MSOP and 8-Lead 3mm × 3mm DFN Packages


  • Logic Power Supplies
  • Post Regulator for Switching Supplies
  • Low Noise Instrumentation

Typical Application

Application Circuit Diagram - Analog Devices Inc. LT1965 Low Dropout Linear Regulators
Publicado: 2019-06-11 | Actualizado: 2022-03-10