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LP3981-12B5F AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LP3981-12B5F product

LP3981-12B5F

Amplifiers

LDOVoltage RegulatorCMOSLow Noise

The LP3981-12B5F is a 1.2V fixed-output, 300mA low-dropout (LDO) regulator optimized for low-noise RF and wireless applications.

Best for

  • Portable RF devices
  • Wireless communication modules
  • Battery-powered systems

Avoid if

  • Applications requiring output voltages other than 1.2V
  • High-current loads exceeding 300mA

Check before use

  • Input voltage range
  • Capacitor ESR requirements

Key specifications

Output Voltage
1.2 V
Max Output Current
300 mA
Dropout Voltage
220 mV

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Portable Electronics

Datasheet

29f7340c970c17f010abfb81ef330b3f_2304140030_LOWPOWER-LP3981-12B5F_C517236.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LP3981-12B5F: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is a high-performance, ultra-low noise CMOS LDO regulator designed for battery-powered portable devices.