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NCP81246 - Three-Rail Controller

Features

  • Dual Edge Modulation for Fastest Initial Response to Transient Loading.
  • High Performance Operational Error Amplifier.
  • Digital Soft Start Ramp.
  • Dynamic Reference Injection® (Patent #US7057381).
  • Accurate Total Summing Current Amplifier(Patent #US6683441).
  • Dual High Impedance Differential Voltage and Total Current Sense Amplifiers.
  • Phase-to-Phase Dynamic Current Balancing.
  • True Differential Current Balancing Sense Amplifiers f.

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Datasheet preview – NCP81246

Datasheet Details

Part number NCP81246
Manufacturer ON Semiconductor
File Size 180.03 KB
Description Three-Rail Controller
Datasheet download datasheet NCP81246 Datasheet
Additional preview pages of the NCP81246 datasheet.

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Full PDF Text Transcription

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NCP81246 Three-Rail Controller with Intel Proprietary Interface for IMVP8 CPU Applications The NCP81246 contains a two-phase, and two single-phase buck regulators optimized for Intel IMVP8 compatible CPUs. The two-phase 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 IMVP8 Rail2. The two single-phase controllers can be used for Rail1, Rail3 and Rail4 rails. Both make use of ON Semiconductor’s patented enhanced RPM operation. RPM control maximizes transient response while allowing for smooth transitions between discontinuous frequency scaling operation and continuous mode full power operation.
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