LP2981AIM5-3.3
- Mfr.Part #
- LP2981AIM5-3.3
- Manufacturer
- Texas Instruments
- Package / Case
- SC-74A, SOT-753
- Datasheet
- Download
- Description
- IC REG LINEAR 3.3V 100MA SOT23-5
- Stock
- 10,714
- In Stock :
- 10,714
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- Manufacturer :
- Texas Instruments
- Product Category :
- Voltage Regulators - Linear
- Dropout Voltage1-Nom :
- 0.2V
- Package / Case :
- SC-74A, SOT-753
- Terminal Form :
- Gull wing
- Thickness :
- 1.2mm
- Width :
- 1.6mm
- Dropout Voltage :
- 200mV
- Number of Outputs :
- 1
- Output Voltage 1 :
- 3.3V
- Output Voltage Accuracy :
- 1 %
- Accuracy :
- 1 %
- Min Current Limit :
- 150mA
- Mounting Type :
- Surface Mount
- Number of Terminations :
- 5
- Lead Free :
- Contains Lead
- Operating Temperature :
- -40°C~125°C
- Current - Quiescent (Iq) :
- 95μA
- Number of Regulators :
- 1
- ECCN Code :
- EAR99
- Voltage - Input (Max) :
- 16V
- Packing Method :
- TR
- Height :
- 1.45mm
- Number of Pins :
- 5
- Max Output Current :
- 100mA
- Min Input Voltage :
- 2.1V
- RoHS Status :
- Non-RoHS Compliant
- Control Features :
- Enable
- Peak Reflow Temperature (Cel) :
- 260
- Radiation Hardening :
- No
- Output Type :
- FIXED
- JESD-609 Code :
- e0
- Output Configuration :
- Positive
- PSRR :
- 63dB (1kHz)
- Pin Count :
- 5
- Output Voltage :
- 3.3V
- Current - Supply (Max) :
- 1.7mA
- Number of Functions :
- 1
- Base Part Number :
- LP2981
- Lifecycle Status :
- NRND (Last Updated: 2 days ago)
- Current Rating :
- 100mA
- Length :
- 2.9mm
- Protection Features :
- Over Current, Over Temperature, Short Circuit
- Mount :
- Surface Mount
- Terminal Position :
- Dual
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Quiescent Current :
- 65μA
- Voltage Dropout (Max) :
- 0.37V @ 100mA
- Packaging :
- Tape and Reel (TR)
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Datasheets
- LP2981AIM5-3.3

Voltage Regulators - Linear Texas Instruments LP2981AIM5-3.3 Overview
The Texas Instruments LP2981AIM5-3.3 is a precision-engineered voltage regulator, specifically designed to maintain a constant 3.3V output from a higher voltage supply. This component ensures stable performance and high reliability in a compact SOT-23-5 package, making it an ideal choice for space-sensitive applications. The LP2981AIM5-3.3 offers a low dropout voltage and a low quiescent current, which greatly enhances the energy efficiency of the device it powers. The robust design of the Voltage Regulators - Linear Texas Instruments LP2981AIM5-3.3 makes it highly effective for managing power in microcontroller systems, ensuring consistent performance and operational stability.
LP2981AIM5-3.3 Features
This device includes several key features that make it an excellent choice for precise power management requirements:
- Output voltage fixed at 3.3V with a tolerance of ±0.5% at 25°C
- Low dropout voltage of typically 120mV at 100mA load, enhancing its efficiency
- Low ground pin current (850 µA typical) at 100mA load, minimizing the power loss in idle mode
- Thermal-overload and short-circuit protection features ensure long-term reliability
- Noise reduction capability with an optional bypass capacitor
LP2981AIM5-3.3 Applications
- Portable Devices: Utilized in smartphones, tablets, and other portable electronics, providing stable power supply with minimal battery drain.
- Microcontroller Power Supply: Ensures a clean and stable 3.3V output, crucial for microcontrollers and other digital logic devices to operate efficiently and reliably.
- Battery-Powered Equipment: Ideal for use in battery-powered applications due to its low dropout voltage and quiescent current, which extend battery life.
- Sensor Systems: Powers sensors in industrial and commercial applications, where consistent voltage levels are necessary for accurate readings.
- Medical Devices: Employed in various medical devices that require consistent and reliable power management for sensitive medical instrumentation.
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