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7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator


Models (2)

Title Category Type Date
LM25017 Unencrypted PSpice Transient Model PSpice Model ZIP 25 Feb 2016
LM25017 PSpice Transient Model PSpice Model ZIP 30 Jan 2013

Design kits & evaluation modules (4)

Name Part# Type
Evaluation Module - LM25017MR Wide Vin 3W Dual Output Flybuck Regulator LM25017MRFBEVM Evaluation Modules & Boards
LM25017 Wide Vin Synchronous Step-down Regulator Evaluation Module LM25017MR-EVM Evaluation Modules & Boards
LM5017 Isolated Bias Supply Evaluation Board LM5017ISOEVAL Evaluation Modules & Boards
LM5017 Wid Vin Synchronous Buck Regulator Evaluation Board LM5017EVAL Evaluation Modules & Boards

Reference designs

Compact low-loss isolated four-output flybuck reference design

This four output flybuck reference design the LM25017 synchronous buck converter to provide four 3.3 V, 82.5 mW outputs. Each output has 1.25 kV isolation and is regulated to 1% accuracy. A low profile transformer and low BOM count create a compact solution size.

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

Description Part Number Company Tool Type
Low-Power Isolated Supply, Input range: 36V to 75V, Output: 10V @ 120mA, LM5017 PMP7798 Texas Instruments Reference designs
Tiny Synchronous Buck Converter in TO-220 Size Reference Design PMP8581 Texas Instruments Reference designs

Development tools (1)

Name Part# Type
Fly-Buck and Flyback Topology Selector FLYBUCK-FLYBACK-DESIGN-CALC Calculation Tools

CAD/CAE symbols

Part# Package | Pins CAD File (.bxl) STEP Model (.stp)
LM25017 Download Download
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 LM25017

  Min   Max Range
Vin  V 9.0 to 48.0V
Vout  V 1.25 to 48V
Iout  A ≤ 0.65A
Ambient Temp  °C -40 to 125°C