NCP5393B CPU VRM Controller IC

The NCP5393B IC from On Semiconductor (onsemi) is a high-performance 2-phase, 3-phase, or 4-phase PWM voltage regulator controller designed specifically for CPU power applications. This IC is widely used in laptop motherboards, desktop boards, and embedded computing platforms where precise and efficient power delivery is required for processor operation.

NCP5393B supports accurate voltage regulation, load balancing, and power sequencing, ensuring stable CPU performance under varying load conditions. Its multi-phase architecture helps improve efficiency, reduce ripple, and enhance thermal management. The IC is commonly replaced during chip-level motherboard repair for issues such as no power, unstable booting, CPU voltage drop, or random shutdowns.

At OKSpare, all NCP5393B ICs are quality tested before dispatch. IC ready stock OKSpare ensures trusted supply from Nehru Place, Delhi.

Technical Summary

• 2-phase, 3-phase, or 4-phase CPU VRM controller IC

• Designed for processor power regulation

• Supports efficient multi-phase power delivery

• Used in laptop and desktop motherboard CPU circuits

• Suitable for chip-level repair and replacement