TPS54040A
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode

 

Models (5)

Title Category Type Date
TPS54040A Unencrypted PSpice Average Model PSpice Model ZIP 17 Sep 2018
TPS54040A PSpice Average Model PSpice Model ZIP 16 Jul 2013
TPS54040 TINA-TI Transient Reference Design TINA-TI Reference Design TSC 17 Nov 2010
TPS54040 TINA-TI Transient Spice Model TINA-TI Spice Model ZIP 17 Nov 2010
TPS54040 PSpice Transient Model PSpice Model ZIP 16 Jul 2009

Design kits & evaluation modules (1)

Name Part# Type
TPS54040 42V Input, 5V Output, 0.5A Evaluation Module TPS54040EVM-456 Evaluation Modules & Boards

Reference designs

Power Stage Reference Design for Power Stealing Thermostat

This TI Design provides a reference design for low cost high efficiency power stealing for low cost smart thermostats and other building automation equipment. In general, power stealing enables to extend battery life of Wi-Fi enabled smart thermostats by drawing power from 24-V AC when the HVAC load (...)

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

Description Part Number Company Tool Type
9 to 14Vin 3.3V/0.3A Buck Conv Ceramic Output Capacitor Switching @ 398kHz Reference Design PMP8715 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)
TPS54040A Download
Download

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

Please follow the instructions below to view the CAD symbols:

Step 1: Download and install the Ultra Librarian software

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

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

You can always access the complete CAD/CAE Symbols database at //webench.ti.com/cad/

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.

The UL Reader is a subset of the Ultra Librarian toolset that can generate, import, and export components and their attributes in virtually any EDA CAD/CAE format.

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WEBENCH® Designer TPS54040A

  Min   Max Range
Vin  V 3.5 to 42.0V
Vout  V 0.8 to 39V
Iout  A ≤ 0.5A
Ambient Temp  °C -40 to 125°C