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LD2981 - Ultra low-drop voltage regulators

Description

The LD2981 is a 100 mA fixed-output voltage regulator.

The low-drop voltage and the ultra low quiescent current make them suitable for low noise, low power applications and in battery powered systems.

The quiescent current in sleep mode is less than 1 μA when INHIBIT pin is pulled low.

Features

  • Ultra low dropout voltage (0.17 V typ. at 100 mA load, 7 mV typ. at 1 mA load).
  • Very low quiescent current (80 μA typ. at no load in on mode; max 1 μA in off mode).
  • Guaranteed output current up to 100 mA.
  • Logic-controlled electronic shutdown.
  • Output voltage of 2.5; 3.0; 3.3; 5.0 V.
  • Internal current and thermal limit.
  • ± 0.75% tolerance output voltage available (A version).
  • Output low noise voltage 160 μVRMS.
  • Temperature range: -40 to 125 °C.
  • Smal.

📥 Download Datasheet

Datasheet preview – LD2981

Datasheet Details

Part number LD2981
Manufacturer STMicroelectronics
File Size 1.00 MB
Description Ultra low-drop voltage regulators
Datasheet download datasheet LD2981 Datasheet
Additional preview pages of the LD2981 datasheet.

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Full PDF Text Transcription

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LD2981 Ultra low-drop voltage regulators with inhibit Datasheet - production data Features  Ultra low dropout voltage (0.17 V typ. at 100 mA load, 7 mV typ. at 1 mA load)  Very low quiescent current (80 μA typ. at no load in on mode; max 1 μA in off mode)  Guaranteed output current up to 100 mA  Logic-controlled electronic shutdown  Output voltage of 2.5; 3.0; 3.3; 5.0 V  Internal current and thermal limit  ± 0.75% tolerance output voltage available (A version)  Output low noise voltage 160 μVRMS  Temperature range: -40 to 125 °C  Small package SOT23-5L and SOT-89  Fast dynamic response to line and load changes Description The LD2981 is a 100 mA fixed-output voltage regulator.
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