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LM1117S-3.3 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM1117S-3.3 product

LM1117S-3.3

Power Management (PMIC)

LDO3.3VVoltage RegulatorSOT-223

The LM1117S-3.3 is a reliable 1A fixed 3.3V LDO regulator in a SOT-223 package, suitable for general-purpose power management.

Best for

  • 3.3V power rails
  • Battery-powered devices
  • SCSI bus termination

Avoid if

  • High-current applications exceeding 1A
  • Applications requiring ultra-low quiescent current

Check before use

  • Thermal dissipation limits
  • Output capacitor ESR requirements

Key specifications

Output Voltage
3.3 V
Max Output Current
1 A
Dropout Voltage
1 V (at 1A)
Max Input Voltage
20 V

Compliance & Environment

RoHS
Compliant
REACH
nan
MSL
3
ECCN
nan
HTSUS
nan

Application

Power ManagementConsumer Electronics

Datasheet

e61c65407d54cb44697b8720a46019ff_2304140030_HTC-Korea-TAEJIN-Tech-LM1117S-3-3_C126027.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LM1117S-3.3: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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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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Where to Buy

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Live prices updated on demand · Catalog (~) prices may differ

Alternative components

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

Design and risk insights

Questions & answers

It is a 1A low-dropout (LDO) linear voltage regulator with a fixed 3.3V output, housed in a SOT-223 surface-mount package.