Analog Devices Inc. LT®1964 Low Dropout Negative Regulator

Analog Devices LT®1964 Low Dropout Negative Regulator is capable of supplying 200mA of output current with a dropout voltage of 340mV. The LT1964 has a low quiescent current (30μA operating and 3μA shutdown), making it an excellent choice for battery-powered applications. Quiescent current is well controlled in a dropout. The LT1964 also features low output noise and an external 0.01μF bypass capacitor. Output noise is reduced to 30μVRMS over a 10Hz to 100kHz bandwidth.


  • Low noise at 30μVRMS (10Hz to 100kHz)
  • Low quiescent current at 30μA
  • Low dropout voltage at 340mV
  • Output current at 200mA
  • Fixed output voltage at -5V
  • Adjustable output from -1.22V to -20V
  • Positive or negative shutdown logic
  • 3μA Quiescent current in shutdown
  • Stable with 1μF output capacitor
  • Stable with aluminum, tantalum, or ceramic capacitors
  • Thermal limiting
  • Low profile (1mm) ThinSOT™ and (0.75mm) 8-Pin 3mm x 3mm DFN packages


  • Battery-powered instruments
  • Low noise regulator for noise-sensitive instrumentation
  • Negative complement to LT1761 family of positive LDOs

Typical Application Circuit

Application Circuit Diagram - Analog Devices Inc. LT®1964 Low Dropout Negative Regulator
Published: 2019-03-27 | Updated: 2023-08-22