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LT1123 - Low Dropout Regulator Driver

Key Features

  • Extremely Low Dropout.
  • Low Cost.
  • Fixed 5V Output, Trimmed to ±1%.
  • 700µA Quiescent Current.
  • 1mV Line Regulation.
  • 5mV Load Regulation.
  • Thermal Limit.
  • 4A Output Current Guaranteed.
  • Available in a 3-Pin TO-92 Package LT1123 Low Dropout Regulator Driver.

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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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U U FEATURES ■ Extremely Low Dropout ■ Low Cost ■ Fixed 5V Output, Trimmed to ±1% ■ 700µA Quiescent Current ■ 1mV Line Regulation ■ 5mV Load Regulation ■ Thermal Limit ■ 4A Output Current Guaranteed ■ Available in a 3-Pin TO-92 Package LT1123 Low Dropout Regulator Driver DESCRIPTIO The LT®1123 is a 3-pin bipolar device designed to be used in conjunction with a discrete PNP power transistor to form an inexpensive low dropout regulator. The LT1123 consists of a trimmed bandgap reference, error amplifier, and a driver circuit capable of sinking up to 125mA from the base of the external PNP pass transistor. The LT1123 is designed to provide a fixed output voltage of 5V. The drive pin of the device can pull down to 2V at 125mA (1.4V at 10mA).