Packet Digital, LLC


  • Configurable On-Demand Power® algorithm to adaptively scale regulated output voltage in correlation with monitored system activity
  • System sensory interface to monitor activity and demand for regulated voltage domains
  • Constant-on-time, voltage feed-forward, synchronous step-down PWM controller
  • Wide input voltage range: 6.5V to 24V
  • Programmable output voltage range: 3V to 5V
  • PWM and light-load operation
  • Temperature compensated RDS(ON) current sensing
  • Internal softstart
  • Output over and under voltage protection
  • Built-in output discharge circuit
  • SMBus Interface
  • 5x5mm 40-pin QFN package


The PSG5210 is a highly integrated power management IC with a synchronous step-down PWM controller for SATA drive power management in notebooks. Interfaces for monitoring activity, coupled with advanced On-Demand Power algorithms, enable the regulated output voltage of the integrated switching regulator to be adaptively scaled in correlation with actual power demand. The real-time tracking of supply voltage to activity enables maximum power savings by minimizing the power spent on maintaining worst-case headroom in power distribution.


  • Mobile (notebook and netbook) Computers
  • Ultra-Mobile PCs
  • Portable Media Players
  • Other Mobile Devices
  • Radios
  • DVD Players
  • Gaming Systems
  • Televisions
  • Set Top Boxes


Evaluation Kits

  • PSG5210 Evaluation Kit (by request)


PSG5210 schematic

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