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78L33 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

78L33 product

78L33

Power Management (PMIC)

Linear Regulator3.3VSOT-89

The 78L33 is a fixed 3.3V, 100mA positive linear voltage regulator in a SOT-89 package, featuring built-in thermal and short-circuit protection.

Best for

  • Low-current local voltage regulation
  • Replacing zener diode-resistor circuits

Avoid if

  • Load current exceeds 100mA
  • High efficiency is required (linear regulators dissipate heat)

Check before use

  • Thermal dissipation requirements
  • Input-to-output voltage differential

Key specifications

Output Voltage
3.3 V
Max Output Current
100 mA
Dropout Voltage
2.5 V

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power ManagementGeneral Regulation

Datasheet

b9ae1259372f388f6d143c9c0d033f78_2407191457_UMW-Youtai-Semiconductor-Co---Ltd--78L33_C30167296.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 78L33: 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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KiCad Library
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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

The 78L33 is a three-terminal positive linear voltage regulator that provides a fixed 3.3V output. It is designed for low-current applications up to 100mA.