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LDL1117S33R AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LDL1117S33R product

LDL1117S33R

Voltage Regulators - Linear

LDO3.3V1.2AHigh PSRRVoltage Regulator

The LDL1117S33R is a high-PSRR 1.2 A LDO regulator providing a fixed 3.3 V output, ideal for noise-sensitive power rails in industrial and consumer electronics.

Best for

  • Noise-sensitive 3.3 V rails
  • SMPS post-regulation

Avoid if

  • Applications requiring ultra-low quiescent current below 250 µA
  • Space-constrained designs where SOT223 is too large

Check before use

  • Thermal dissipation requirements at maximum load
  • Output capacitor ESR requirements for stability

Key specifications

Output Voltage
3.3 V
Max Output Current
1.2 A
Dropout Voltage
350 mV @ 1.2 A
PSRR
87 dB @ 120 Hz

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power ManagementIndustrialConsumer

Datasheet

ldl1117.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LDL1117S33R: 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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Alternative components

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

Design and risk insights

Questions & answers

It is a 1.2 A low-dropout (LDO) linear voltage regulator with a fixed 3.3 V output, designed for high power supply rejection (PSRR).