LT1964 Datasheet | Linear Technology

LT1964 200m A, Low Noise, Low Dropout Negative Micropower Regulator in Thin SOT Features s s s s s s s s s s s DESCRIPTIO s Low Profile (1mm) Thin SOTTM Package Low Noise: 30µVRMS (10Hz to 100k Hz) Low Quiescent Current: 30µA Low Dropout Voltage: 340m V Output Current: 200m A 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 200m A of output current with a dropout voltage of 340m V. Low quiescent current (30µA operating and 3µA shutdown) makes the LT1964 an excellent choice for batterypowered applications. Quiescent current is well controlled in dropout. Other Features of the LT1964 include low output noise. With the addition of an external 0.01µF bypass capacitor, output noise is reduced to 30µVRMS over a 10Hz to 100k Hz bandwidth. The LT1964 is capable of operating with small capacitors and is stable with output capacitors as low as 1µF. Small ceramic capacitors can be used without the necessary addition of ESR as is mon 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. The LT1964 regulators are available in a low profile (1mm) Thin SOT package. , LTC and LT are registered trademarks of Linear Technology Corporation. Thin SOT is a trademark of Linear Technology Corporation. U APPLICATIO S s s s Battery-Powered Instruments Low Noise Regulator for Noise-Sensitive Instrumentation Negative plement to LT1761 Family of Positive LDOs TYPICAL APPLICATIO 10Hz to 100k Hz Output Noise - 5V Low Noise Regulator 1µF VIN - 5.4V TO - 20V 10µF BYP 0.01µF VOUT 100µV/DIV 30µVRMS GND...