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LP2981A-33 - 100-mA Ultra-Low Dropout Regulators

Download the LP2981A-33 datasheet PDF. This datasheet also covers the LP2981-28 variant, as both devices belong to the same 100-ma ultra-low dropout regulators family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LP2981-28-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LP2981 Micropower 100 mA Ultra Low-Dropout Regulator National Semiconductor
LP2980 Micropower 50 mA Ultra Low-Dropout Regulator National Semiconductor
LP2980-ADJ Micropower SOT/ 50 mA Ultra Low-Dropout Adjustable Voltage Regulator National Semiconductor
LP2980-ADJEP 50 mA Ultra Low-Dropout Adjustable Voltage Regulator National Semiconductor
LP2980LV 50mA Low-Voltage Low-Dropout Regulator National Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LP2981A-30 100-mA Ultra-Low Dropout Regulators
LP2981A-28 100-mA Ultra-Low Dropout Regulators
LP2981A-29 100-mA Ultra-Low Dropout Regulators
LP2981A-50 100-mA Ultra-Low Dropout Regulators
LP2981A 100-mA Ultra-Low Dropout Regulators

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.

View original datasheet text
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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