75V, 1.5A Step-Down Switching Regulator Evaluation Module


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The LM5575 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5575 regulator IC. The evaluation board provides a 5V output with a 1.5A current capability. The ultra-wide input voltage ranges from 7V to 75V. The design operates at 300kHz, a good compromise between conversion efficiency and solution size. The printed circuit board consists of 2 layers of 2 ounce copper on FR4 material with a thickness of 0.06 inches. This application note contains the evaluation board schematic, Bill-of-Materials (BOM) and a quick setup procedure. Refer to the LM5575 datasheet for complete circuit design information.

  • Integrated 75V, 330Wm N-Channel MOSFET
  • Ultra-wide input voltage range from 6V to 75V
  • Adjustable output voltage as low as 1.225V
  • 1.5% feedback reference accuracy
  • Operating frequency adjustable between 50kHz and 500kHz with single resistor
  • Master or slave frequency synchronization
  • Adjustable soft-start
  • Emulated current mode control architecture
  • Wide bandwidth error amplifier
  • Built-in protection
  • TSSOP-16EP (Exponsed Pad) Package


Buck converters (integrated switch)
LM5575 6V to 75V, 1.5A Wide Vin Step-Down Regulator LM5575-Q1 75V, 1.5A Step-Down Switching Regulator

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Evaluation board

LM5575EVAL – 75V, 1.5A Step-Down Switching Regulator

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* User guide AN-1569 LM5575 Evaluation Board (Rev. C) Apr. 26, 2013
Certificate LM5575EVAL EU Declaration of Conformity (DoC) Jan. 02, 2019
Application note Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575 (Rev. B) Apr. 23, 2013

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