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LP2981A - 100-mA Ultra-Low Dropout Regulators

This page provides the datasheet information for the LP2981A, a member of the LP2981-28 100-mA Ultra-Low Dropout Regulators family.

Datasheet Summary

Description

The LP2981 is a fixed-output, low-dropout (LDO) voltage regulator supporting an input voltage range from 2.5 V to 16 V (for new chip only) and up to 100 mA of load current.

The LP2981 supports an output range of 1.2 V to 5.0 V (new chip).

Features

  • Input Voltage (VIN) Range:.
  • Legacy chip: 2.2 V to 16 V.
  • New chip: 2.5 V to 16 V.
  • Output Voltage (VOUT) Range: 1.2 V to 5.0 V.
  • Output Voltage (VOUT) Accuracy:.
  • ±0.75% for A-Grade legacy chip.
  • ±1.25% for standard-grade legacy chip.
  • ±0.5% for new chip (A grade and standard grade).
  • Output Voltage (VOUT) accuracy over load, and temperature: ±1% (new chip).
  • Output current: Up to 100 mA.
  • Low IQ (new chi.

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Datasheet preview – LP2981A

Datasheet Details

Part number LP2981A
Manufacturer Texas Instruments
File Size 2.73 MB
Description 100-mA Ultra-Low Dropout Regulators
Datasheet download datasheet LP2981A Datasheet
Additional preview pages of the LP2981A datasheet.

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Full PDF Text Transcription

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LP2981, LP2981A SLVS521H – JULY 2004 – REVISED DECEMBER 2023 LP2981 100-mA, Low-Dropout Regulator in SOT-23 Package 1 Features • Input Voltage (VIN) Range: – Legacy chip: 2.2 V to 16 V – New chip: 2.5 V to 16 V • Output Voltage (VOUT) Range: 1.2 V to 5.0 V • Output Voltage (VOUT) Accuracy: – ±0.75% for A-Grade legacy chip – ±1.25% for standard-grade legacy chip – ±0.5% for new chip (A grade and standard grade) • Output Voltage (VOUT) accuracy over load, and temperature: ±1% (new chip) • Output current: Up to 100 mA • Low IQ (new chip): 69 μA at ILOAD = 0 mA • Low IQ (new chip): 620 μA at ILOAD = 100 mA • Shutdown current over temperature: – < 1 μA (legacy chip) – ≤ 1.75 μA (new chip) • Output current limiting and thermal protection • Stable with 2.
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