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NCP6121 Datasheet Dual Output 3 Phase +1/0 Phase Controller

Manufacturer: onsemi

Overview: NCP6121 Dual Output 3 Phase +1/0 Phase Controller with Single SVID Interface for Desktop and Notebook CPU Applications http://onsemi. The NCP6121 dual output three plus one phase buck solution is optimized for Intel VR12 patible CPUs. The controller bines true differential voltage sensing, differential inductor DCR current sensing, input voltage feed−forward, and adaptive voltage positioning to provide accurately regulated power for Desktop applications. The control system is based on Dual−Edge pulse−width modulation (PWM) bined with DCR current sensing providing the fastest initial response to dynamic load events and reduced system cost. It also sheds to single phase during light load operation and can auto frequency scale in light load while maintaining excellent transient performance. Dual high performance operational error amplifiers are provided to simplify pensation of the system. Patented Dynamic Reference Injection further simplifies loop pensation by eliminating the need to promise between closed−loop transient response and Dynamic VID performance. Patented Total Current Summing provides highly accurate current monitoring for droop and digital current monitoring. MARKING DIAGRAM 1 52 QFN−52 CASE 485BE NCP6121 AWLYYWWG A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 27 of this data sheet.

Key Features

  • Meets Intel VR12 and IMVP7 Specifications.
  • Current Mode Dual Edge Modulation for Fastest Initial Response to Transient Loading.
  • Dual High Performance Operational Error Amplifier.
  • Switching Frequency Range of 200 kHz.
  • 1.0 MHz.
  • One Digital Soft Start Ramp for Both Rails.
  • Dynamic Reference Injection.
  • Accurate Total Summing Current Amplifier.
  • DAC with Droop Feed.
  • forward Injection.
  • Dual High Impeda.

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