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L4973D3.3 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

L4973D3.3 product

L4973D3.3

Voltage Regulators - DC DC Switching Regulators

Switching RegulatorBuck Converter3.5A

The L4973D3.3 is a 3.5 A monolithic step-down switching regulator designed for high-efficiency power conversion.

Best for

  • Industrial power supplies
  • DC-DC step-down applications

Avoid if

  • Applications requiring output voltages below 3.3 V without specific design modifications

Check before use

  • Thermal dissipation requirements for the SO-20 package

Key specifications

Output Current
3.5 A
Input Voltage
8 V - 55 V
Fixed Output
3.3 V

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power Management

Datasheet

L4973D3.3-STMicroelectronics-datasheet-2517.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for L4973D3.3: 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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Where to Buy

Real-time and catalog pricing from verified distributors

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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 monolithic step-down switching regulator capable of delivering 3.5 A with a fixed 3.3 V output.