Synchronous Inverting Buck Converter Application - Reference Design
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PMP9380 reference design is a Synchronous Inverting Buck Converter using the LM46002 Synchronous Buck Regulator IC. The design accepts an input voltage of 18Vin to 42Vin and provides an output of -15V capable of supplying a maximum current of 0.5A to the load.  This design was built on a 4-layer board (1 oz. copper on top and bottom layers and 0.5 oz. copper on two inner layers). Tests in this report were performed at 18Vin, 30Vin, and 42Vin.

  • Vin 18V to 42V
  • 4 layer board (1 oz. copper on top and bottom, 0.5 oz. on middle two layers)
  • Board dimensions: 3.2” x 1.6”
  • Good thermal performance and efficiency

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Design Files

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM46002  3.5V to 60V, 2A Synchronous Step-Down Voltage Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM46002 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1118 14 Jan 2015
Design files (4)
Title Type Size (KB) Date
ZIP 118 14 Jan 2015
ZIP 496 14 Jan 2015
PDF 103 14 Jan 2015
PDF 125 14 Jan 2015

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