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LP2981-33DBVR +BOM

The LP2981-33DBVR is a Voltage Regulator with a dropout voltage of 3

LP2981-33DBVR General Description

Texas Instruments' LP2981-33DBVR is a dependable choice for applications that require a constant 3.3V power supply with tight voltage regulation. The device's low dropout voltage and high-efficiency operation ensure minimal power dissipation, making it an energy-efficient solution for battery-powered devices or other systems sensitive to power consumption. With its compact SOT-23 package and robust protection mechanisms, including thermal shutdown and current limit features, the LP2981-33DBVR offers a reliable and durable solution for demanding environments

Key Features

  • Output Tolerance of
    • 0.75% (A Grade)
    • 1.25% (Standard Grade)
  • Ultra-Low Dropout Typically:
    • 200 mV at Full Load of 100 mA
    • 7 mV at 1 mA
  • Low IQ: 600 µA Typical at Full Load of 100 mA
  • Shutdown Current: 0.01 µA Typical
  • Fast Transient Response to Line and Load
  • Overcurrent and Thermal Protection
  • High Peak Current Capability
  • Low ZOUT Over Wide Frequency Range
  • –40°C to 125°C Temperature Range


Output options Fixed Output Iout (max) (A) 0.1
Vin (max) (V) 16 Vin (min) (V) 2.2
Vout (max) (V) 5 Vout (min) (V) 2.8
Fixed output options (V) 2.8, 2.9, 3, 3.3, 5 Noise (µVrms) 160
Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 205
Rating Catalog Load capacitance (min) (µF) 2.2
Regulated outputs (#) 1 Features Enable
Accuracy (%) 6 PSRR at 100 KHz (dB) 41
Dropout voltage (Vdo) (typ) (mV) 200 Operating temperature range (°C) -40 to 125

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