TPS5403DR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TPS5403DR product

TPS5403DR

Voltage Regulators - DC DC Switching Regulators

Buck Regulator3.3V Output1.7ATI

The TPS5403DR is a robust 1.7A non-synchronous buck regulator designed for 4.5V-28V input systems requiring a fixed 3.3V output.

Best for

  • Distributed power systems
  • Consumer electronics
  • Industrial power supplies

Avoid if

  • Applications requiring output voltages other than 3.3V
  • High-efficiency requirements at very high load currents where synchronous rectification is preferred

Check before use

  • External compensation network design
  • Thermal dissipation in the SOIC-8 package

Key specifications

Input Voltage
4.5V - 28V
Output Voltage
3.3V
Max Output Current
1.7A
Switching Frequency
50kHz - 1.1MHz

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-1-260C-UNLIM
ECCN
-
HTSUS
-

Application

PowerIndustrial

CAD Models

Download ECAD models for TPS5403DR: 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

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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 28V, 1.7A step-down (buck) converter with an integrated high-side MOSFET, providing a fixed 3.3V output.