LT1962 Datasheet | Linear Technology

LT1962 Series 300m A, Low Noise, Micropower LDO Regulators Features nn Low Noise: 20µVRMS (10Hz to 100k Hz) nn Output Current: 300m A nn Low Quiescent Current: 30µA nn Wide Input Voltage Range: 1.8V to 20V nn Low Dropout Voltage: 270m V nn Very Low Shutdown Current: < 1µA nn No Protection Diodes Needed nn Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V nn Adjustable Output from 1.22V to 20V nn Stable with 3.3µF Output Capacitor nn Stable with Aluminum, Tantalum or Ceramic Capacitors nn Reverse Battery Protection nn No Reverse Current nn Overcurrent and Overtemperature Protected nn 8-Lead MSOP Package Applications nn Cellular Phones nn Battery-Powered Systems nn Noise-Sensitive Instrumentation Systems Description The LT®1962 series are micropower, low noise, low dropout regulators. The devices are capable of supplying 300m A of output current with a dropout voltage of 270m V. Designed for use in battery-powered systems, the low 30µA quiescent current makes them an ideal choice. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. A key feature of the LT1962 regulators is low output noise. With the addition of an external 0.01µF bypass capacitor, output noise drops to 20µVRMS over a 10Hz to 100k Hz bandwidth. The LT1962 regulators are stable with output capacitors as low as 3.3µF. Small ceramic capacitors can be used without the series resistance required by other regulators. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The parts e in fixed output voltages of 1.5V, 1.8V, 2.5V, 3V, 3.3V and 5V, and as an adjustable device with a 1.22V reference voltage. The LT1962 regulators are available in the 8-lead MSOP package. L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical...