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3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode


Models (8)

Title Category Type Date
TPS54140 Unencrypted PSpice Average Model PSpice Model ZIP 27 Mar 2019
TPS54140 Unencrypted PSpice Transient Model PSpice Model ZIP 15 Mar 2019
TPS54140 TINA-TI Average Reference Design TINA-TI Reference Design TSC 28 Feb 2012
TPS54140 TINA-TI Average Spice Model TINA-TI Spice Model ZIP 28 Feb 2012
TPS54140 PSpice Average Model PSpice Model ZIP 24 Feb 2012
TPS54140 TINA-TI Steady State Reference Design TINA-TI Reference Design TSC 17 Nov 2010
TPS54140 TINA-TI Transient Spice Model TINA-TI Spice Model ZIP 17 Nov 2010
TPS54140 PSpice Transient Model (Rev. A) PSpice Model ZIP 02 Oct 2009

Design kits & evaluation modules (1)

Name Part# Type
TPS54140 42V Input, 3.3V Output, 1.5A Evaluation Module TPS54140EVM-429 Evaluation Modules & Boards

Reference designs

Three-phase inverter reference design for 200-480 VAC drives with opto-emulated input gate drivers

This reference design realizes a reinforced isolated three-phase inverter subsystem using isolated IGBT gate drivers and isolated current/voltage sensors. The UCC23513 gate driver used has a 6-pin wide body package with optical LED emulated inputs which enables its use as pin-to-pin replacement to (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Description Part Number Company Tool Type
Non-Isolated Buck Using TPS54140A with Input 24 to 30 VDC 5V@1.25A Reference Design PMP8716 Texas Instruments Reference designs

Software (1)

TPS54x40 and TPS54x60 Buck Design Spreadsheet (Rev. A)  (ZIP 49 KB )    12 Feb 2013  

CAD/CAE symbols

Part# Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS54140A Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

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Step 3: Open the .bxl file with the Ultra Librarian software.

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Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a free download.

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WEBENCH® Designer TPS54140A

  Min   Max Range
Vin  V 3.5 to 42.0V
Vout  V 0.8 to 39V
Iout  A ≤ 1.5A
Ambient Temp  °C -40 to 125°C