NCP81243MNTXG (also marked as NCP81243 / NCP 81243) is a high-performance multi-phase PWM controller IC designed for CPU and GPU voltage regulation modules (VRM) in modern laptop and desktop motherboards.
This IC is commonly used in HP, Dell, Acer, Lenovo, ASUS, MSI and other branded systems. It controls external MOSFETs or DrMOS power stages to deliver stable, precise, and high-efficiency synchronous buck conversion required for processor core power.
The QFN-52 package supports compact PCB layout and advanced multi-phase control features, making it suitable for gaming laptops and high-performance motherboards.
IC ready stock OKSpare. IC supplier OKSpare. IC available at OKSpare for motherboard repair engineers and bulk buyers.