LM5145 datasheet(50/60 Pages) TI2

50 / 60 page

8.1.1.1 Custom Design With WEBENCH® Tools

Click here to create a custom design using the LM25139 device with the WEBENCH Power Designer.

1. Start by entering the input voltage (VIN), output voltage (VOUT), and output current (IOUT) requirements.

2. Optimize the design for key parameters such as efficiency, footprint, and cost using the optimizer dial.

3. Compare the generated design with other possible solutions from Texas Instruments.

The WEBENCH Power Designer gives a customized schematic along with a list of materials with real-time

pricing and component availability.

In most cases, these actions are available:

• Run electrical simulations to see important waveforms and circuit performance

• Run thermal simulations to understand board thermal performance

• Export customized schematic and layout into popular CAD formats

• Print PDF reports for the design, and share the design with colleagues

Get more information about WEBENCH tools at www.ti.com/WEBENCH.

8.2 Documentation Support

8.2.1 Related Documentation

For related documentation, see the following:

• User's guides:

– Texas Instruments, LM5137F-Q1 12V, 20A Single-Output Evaluation Module

– Texas Instruments, LM25137-Q1 Evaluation Module

– Texas Instruments, LM5143-Q1 EVM User's Guide

– Texas Instruments, LM5141-Q1 EVM User's Guide

– Texas Instruments, LM5146-Q1 EVM User's Guide

– Texas Instruments, LM5145EVM-HD-20A High Density Evaluation Module

– Texas Instruments, LM5149-Q1 Buck Converter Evaluation Module User's Guide

– Texas Instruments, LM5190-Q1 CC-CV Buck Controller Evaluation Module

• Application notes:

– Texas Instruments, LM5143-Q1 4-phase Buck Regulator Design for Automotive ADAS Applications

– Texas Instruments, Maintaining Output Voltage Regulation During Automotive Cold-Crank with LM5140-

Q1 Dual Synchronous Buck Controller

8.2.1.1 Low-EMI Design Resources

• Texas Instruments, Low EMI landing page

• Texas Instruments, Tackling the EMI challenge company blog

• Texas Instruments, An Engineer's Guide to Low EMI in DC/DC Regulators e-book

• Texas Instruments, Designing a low-EMI power supply video series

• White papers:

– Texas Instruments, An Overview of Conducted EMI Specifications for Power Supplies

– Texas Instruments, An Overview of Radiated EMI Specifications for Power Supplies

– Texas Instruments, Time-Saving and Cost-Effective Innovations for EMI Reduction in Power Supplies

– Texas Instruments, Valuing Wide VIN, Low EMI Synchronous Buck Circuits for Cost-driven, Demanding

Applications

• Texas Instruments, Improve High-Current DC/DC Regulator EMI for Free With Optimized Power Stage

Layout application brief

• Texas Instruments, Reduce Buck Converter EMI and Voltage Stress by Minimizing Inductive Parasitics

analog design journal

LM25139

SLVSJ80 – OCTOBER 2025

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LM5145 Datasheet(PDF) 50 Page - Texas Instruments

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