LM5175 Quickstart Calculator
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now


Welcome to the LM5175 quick-start design tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck regulator based on the LM5175 buck-boost PWM controller. As such, the user can expeditiously arrive at an optimized design to meet the application requirements.

  • Determine filter inductance and input and output filter capacitances
  • Select components for current sensing, soft-start, UVLO, and dither
  • Optimize compensation values and pole/zero placement in terms of current-mode control loop stability using crossover frequency as a performance metric
  • Enter relevant parameters for all four power MOSFETs
  • Inspect regulator efficiency and component power dissipations vs. line and load
  • Analyze efficiency based on selected power stage components
  • Review auto-generated schematic and bill-of-materials list
  • Examine PCB layouts for EVMs and reference designs

Order Now
Part Number Buy from Texas Instruments or Third Party Status

LM5175 Quickstart Calculator


TI Devices (2)

Part Number Name Product Family
LM5175  42V Wide Vin 4-Switch Synchronous Buck-Boost Controller  Buck-boost & inverting regulators 
LM5175-Q1  42V Wide Vin Synchronous 4-Switch Buck-Boost Controller  Buck-boost & inverting regulators 

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles