300mA LDO VOLTAGE REGULATOR (Adjustable & Fixed)

The LM1117GSF is a low power positive-voltage regulator. This device is an excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable computers. The LM1117 features very low quiescent current and very low dropout voltage of 1V at a full load and lower as output current decreases. LM1117 is available as an adjustable or fixed 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V output voltages. The LM1117GSF is offered in a 3-pin surface mount package SOT-23. The output capacitor of 10µF or larger is needed for output stability of LM1117GSF as required by most of the other regulator circuits.


  • Output Current up to 300mA
  • MLCC, Aluminum electrolytic capacitor applicable
  • Three Terminal Adjustable(ADJ) or Fixed 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V
  • Line Regulation typically at 0.1% max.
  • Load Regulation typically at 0.2% max.
  • Internal Current and Terminal Protection
  • Surface Mount Package SOT-23
  • Moisture Sensitivity Level 3

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