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NCP81105H - 1/2/3 Phase Power Controller

Download the NCP81105H datasheet PDF. This datasheet also covers the NCP81105 variant, as both devices belong to the same 1/2/3 phase power controller family and are provided as variant models within a single manufacturer datasheet.

General Description

Pin No.

1 EN Logic input.

Logic high enables the NCP81105 and logic low disables it.

temperature rep

Key Features

  • Meets Intel’s VR12.5 Specifications.
  • Implements VR12.6 PS4 State and SVID Reporting.
  • Mixed Voltage/Current Mode, Dual Edge Modulation for Fastest Initial Response to Transient Loading.
  • High Impedance Differential Voltage Amplifier.
  • High Performance Operational Error Amplifier.
  • High Impedance Total Current Sense Amplifier.
  • True Differential Current Sense Amplifiers for Balancing Current in Each Phase.
  • Digital Soft Start Ramp.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (NCP81105-ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number NCP81105H
Manufacturer onsemi
File Size 378.12 KB
Description 1/2/3 Phase Power Controller
Datasheet download datasheet NCP81105H Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
NCP81105, NCP81105H DrMOS Supporting, 1/2/3 Phase Power Controller with SVID Interface for Desktop and Notebook VR12.5 & VR12.6 CPU Applications The NCP81105 is a DrMOS supporting controller optimized for Intel® VR12.5 & VR12.6 compatible CPUs. The controller combines true differential voltage sensing, differential inductor DCR current sensing, input voltage feed−forward, and adaptive voltage positioning to provide accurately regulated power for both Desktop and Notebook CPU applications. The control system is based on Dual−Edge pulse−width modulation (PWM), to provide the fastest initial response to dynamic load events plus reduced system cost. The NCP81105 is compatible with DrMOS type power stages such as NCP5367, NCP5368, NCP5369 and NCP5338.