This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
42V, 0.5A Step-Down Switching Regulator


Models (3)

Title Category Type Date
LM25574 Non-Inverting and Inverting PSpice Transient Model (Rev. A) PSpice Model ZIP 30 May 2017
LM25574 Unencrypted PSpice Average Model PSpice Model ZIP 24 Mar 2015
LM25574 PSpice Average Model PSpice Model ZIP 14 Feb 2013

Development tools (2)

Name Part# Type
Downloadable LM(2)557x Quick Start SIMPLE SWITCHER Component Calculator SIMPLESWITCHER-COMPONENT-CALC Calculation Tools
LM(2)557x Quick Start SIMPLE SWITCHER Component Calculator LM2557X-557XQUICK-CALC Calculation Tools

CAD/CAE symbols

Part# Package | Pins CAD File (.bxl) STEP Model (.stp)
LM25574-Q1 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.

WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer LM25574-Q1

Topology Option
  Min   Max Range
Vin  V 6 to 42V
Vout  V 1.225 to 42V
Iout  A 0 to 0.5A
Ambient Temp  °C -40 to 125°C