NCP81248
Three-Rail Controller with Intel Proprietary Interface for IMVP8 CPU Applications
The NCP81248 contains a two−phase, and two single−phase buck
regulator controllers optimized for Intel IMVP8 compatible CPUs.
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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 CPU.
MARKING DIAGRAM
The two single−phase controllers make use of ON Semiconductor’s
patented high performance RPM operation.
RPM control maximizes transient response while allowing smooth transitions between discontinuous frequency scali...