PMP5568 Reference Design

Texas Instruments

A Fully Featured: 350W Offline High Performance Power Supply Reference Design


This project is a complete 350W: high performance: high speed offline power supply solution. It contains a novel: microcontroller-driven synchronous bridge rectifier: a 2-phase interleaved PFC stage and a phase-shifted fullbridge as down converter. It has an universal input (85 .. 265V AC) and the output voltage is adjustable between 12 and 14V. The continuous output current is 25A: the peak current is 27A. A second microcontroller monitors several values (input voltage: PFC voltage: output voltage: output current: temperatures): is the interface to the user (LCD: push-buttons): adjusts the output voltage and synchronizes the switching frequency of all converters.

  • Fanless switching frequency could be adjusted for “out of RF band operation”µC is able to vary the switching frequency: too (“Dithering”)
Product Categories
  • Power management


Part Number Name Companion Part
MSP430F2252 MSP430F2252 Buy Datasheet
TPS3809K33 TPS3809K33 Buy Datasheet
UCC28070 UCC28070 Buy Datasheet
UCC28950 UCC28950 Buy Datasheet


Design File

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP5568 Schematic (ADC Card) 25 Sep 2012 PDF 86
PMP5568 Schematic (Power Board) 25 Sep 2012 PDF 462
PMP5568 Schematic (MCU Card) 25 Sep 2012 PDF 171
PMP5568 Schematic (Gate Drive) 25 Sep 2012 PDF 59
PMP5568 BOM (Power Board) 25 Sep 2012 PDF 49
PMP5568 BOM (MCU Card) 25 Sep 2012 PDF 29
PMP5568 BOM (Gate Drive) 25 Sep 2012 PDF 24
PMP5568 BOM (ADC Card) 25 Sep 2012 PDF 26