FEATURES
s s s s s s s s s s s DESCRIPTIO s Low Profile (1mm) ThinSOTTM Package Low Noise: 30µVRMS (10Hz to 100kHz) Low Quiescent Current: 30µA Low Dropout Voltage: 340mV Output Current: 200mA Fixed Output Voltage: –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 The LT®1964 is a micropower low noise, low dropout negative regulator. The device is capable of supplying 200mA of output current with a dropout voltage of 340mV. Low quiescent current (30µA operating and 3µA shutdown) makes Quiescent current is well controlled in dropout. Other features of the LT1964 include low output noise. Small ceramic capacitors can be used without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse output protection, current limiting, and thermal limiting. The device is available with a fixed output voltage of –5V and as an adjustable device with a –1.22V reference voltage.