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LP5990 - Low Dropout Voltage Regulator

General Description

The LP5990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low noise and low quiescent current.

The LP5990 will provide a 1.8V output from a low input voltage of 2.2V and can provide 200mA to an external load.

Key Features

  • 1.
  • 2 Operation from 2.2V to 5.5V Input.
  • ±1% Accuracy Over Temp Range.
  • Output Voltage from 0.8V to 3.6V in 50mV Increments.
  • 30 μA Quiescent Current (Enabled).
  • 10nA Quiescent Current (Disabled).
  • 160mV Dropout at 200mA Load.
  • 60 μVRMSOutput Voltage Noise.
  • 60 μs Start-Up Time.
  • 500μs Shut-Down Time.
  • PSRR 55 dB at 10 kHz.
  • Stable with 0402 1.0µF Ceramic Capacitors.
  • Logic Controlled Enable.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LP5990 www.ti.com SNVS438B – APRIL 2007 – REVISED DECEMBER 2007 LP5990 Micropower 200mA CMOS Low Dropout Voltage Regulator Check for Samples: LP5990 FEATURES 1 •2 Operation from 2.2V to 5.5V Input • ±1% Accuracy Over Temp Range • Output Voltage from 0.8V to 3.6V in 50mV Increments • 30 μA Quiescent Current (Enabled) • 10nA Quiescent Current (Disabled) • 160mV Dropout at 200mA Load • 60 μVRMSOutput Voltage Noise • 60 μs Start-Up Time • 500μs Shut-Down Time • PSRR 55 dB at 10 kHz • Stable with 0402 1.0µF Ceramic Capacitors • Logic Controlled Enable • Thermal–Overload and Short–Circuit Protection APPLICATIONS • Cellular Phones • Hand–Held Information Appliances PACKAGE • 4-Bump DSBGA, 0.