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LM2940HS-3.3 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM2940HS-3.3 product

LM2940HS-3.3

Amplifiers

LDOVoltage RegulatorAutomotive Grade

The LM2940HS-3.3 is a 1.0A fixed 3.3V LDO regulator designed for automotive and industrial use, featuring robust protection against reverse battery and thermal overload.

Best for

  • Automotive power supplies
  • Industrial control systems
  • Battery-powered applications

Avoid if

  • Applications requiring ultra-low quiescent current
  • Designs with extremely limited PCB space for heat dissipation

Check before use

  • Output capacitor ESR and value (min 22µF)
  • Thermal resistance of the SOT-223-3L package on your PCB

Key specifications

Output Voltage
3.3 V
Max Output Current
1.0 A
Dropout Voltage
0.4 V

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

AutomotiveIndustrial

CAD Models

Download ECAD models for LM2940HS-3.3: 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 fixed 3.3V, 1.0A low dropout (LDO) voltage regulator from TC, specifically designed for harsh environments like automotive systems.