LT1962EMS8#TRPBF

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1. Description

The LT1962EMS8#TRPBF series aremicropower, lownoise, lowdropout regulators. The devices are capable of supplying 300mA of output current with a dropout voltage of 270mV. 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 LT1962EMS8#TRPBF regulators is low output noise. With the addition of an external 0.01µF bypass capacitor, output noise drops to 20µVRMS over a 10Hz to 100kHz bandwidth. The LT1962EMS8#TRPBF 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. Internalprotectioncircuitryincludesreversebatteryprotection, current limiting, thermal limiting and reverse current protection. Theparts come infixedoutput voltagesof 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.

2. Features

    1. Low Noise: 20µVRMS (10Hz to 100kHz)

    2. Output Current: 300mA

    3. Low Quiescent Current: 30µA

    4. Wide Input Voltage Range: 1.8V to 20V

    5. Low Dropout Voltage: 270mV

    6. Very Low Shutdown Current: < 1µA

    7. No Protection Diodes Needed

    8. Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V

    9. Adjustable Output from 1.22V to 20V

  10. Stable with 3.3µF Output Capacitor

  11. Stable with Aluminum, Tantalum or Ceramic Capacitors

  12. Reverse Battery Protection

  13. No Reverse Current

  14. Overcurrent and Overtemperature Protected

  15. 8-Lead MSOP Package

3. Applications

    1. Cellular Phones

    2. Battery-Powered Systems

    3. Noise-Sensitive Instrumentation Systems