12Vin, -5V Output Inverting Buck Boost using Synchronous Step Down Converter Reference Design
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The TPS54335 provides a single IC for both control and the power stage for DC/DC applications up to 3A. PMP20566 utilizes the TPS54335 in an inverting buck boost topology to implement a regulated -5V, rail. TPS54335 enables the designer to implement power solutions which require negative voltages with low BOM count and small solution size.

  • Inverting buck-boost topology using synchronous, step-down converter
  • Internal MOSFETs allows for reduced BOM count and smaller solution size
  • Current mode control with external COMP pin enables greater design flexibility
  • Pulse skipping to maximize efficiency in light load conditions

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(Output Voltage 1)
Vin (Min) (V)9
Vin (Max) (V)12
Vout (Nom) (V)-5
Iout (Max) (A)2
Output Power (W)10
Input TypeDC
TopologyBuck Boost- Inverting

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS54335A  4.5V to 28V Input, 3A, Synchronous, Step-Down Converter with Eco-mode  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS54335A Download Download
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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 1513 29 Mar 2017
Design files (5)
Title Type Size (KB) Date
ZIP 404 29 Mar 2017
PDF 466 29 Mar 2017
PDF 114 29 Mar 2017
PDF 68 29 Mar 2017
PDF 194 29 Mar 2017

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