Packet Digital, LLC


  • Configurable On-Demand Power® algorithm to adaptively scale regulated output voltage in correlation with monitored system activity
  • System sensory interfaces to monitor activity and demand for regulated voltage domains
  • Programmable output voltage supporting DDR3, DDR3L, DDR3UL, and DDR4 voltages
  • Temperature compensated DCR current sensing
  • SMBus compatible programming interface
  • QFN package


The PSG5400 is a highly integrated power management IC with a differential remote sense voltage regulator interface designed to monitor DDR memory activity and scale the VDDQ supply voltage dynamically. A programmable interface for monitoring memory activity, coupled with an advanced On-Demand Power® algorithm, enable the supply voltage of the memory voltage regulator to be adaptively scaled in correlation with actual demand. The real-time tracking of supply voltage to memory activity enables maximum system power savings by minimizing the power spent on maintaining worst-case headroom in the power distribution network.


  • DDR3, DDR3L, DDR3UL, and DDR4 Memory Power Supplies
  • Mobile Computers
  • Servers
  • Networking Switches and Routers


Evaluation Kits

  • PSG5400 Evaluation Kit (by request)


PSG5400 schematic

Purchasing and Support

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