PMP10977 Reference Design

Texas Instruments

4-20 mA Loop Sensor Isolated Power Supply

Description

The TPS54061 is used in a buck topology with an auxillary winding providing power to the primary side and isolated side of a isolated system. The high efficiency of this topology provides more output current from a system powered from a current limited input source. The isolated output is post regulated with an LDO for best regulation. 

Features
  • • Synchronous buck for high integration and high efficiency• 60-V wide input voltage range• 90-µA non-switching input current• Auxillary winding provides a highly efficient low current isolated output• Built and tested circuit and PCB design
Applications
Product Categories
  • Power management

Parts

Part Number Name Companion Part
TPS54061 TPS54061 Buy Datasheet

Bill Of Materials

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Schematic

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP10977 BOM (Rev. A) 22 Apr 2015 PDF 211
PMP10977 Schematic (Rev. A) 22 Apr 2015 PDF 186
PMP10977 Altium 05 Mar 2015 ZIP 1422
PMP10977 PCB 05 Mar 2015 PDF 366
PMP10977 Assembly Drawing 05 Mar 2015 PDF 91