NCP5386 1/2-Phase Buck Controller IC

The NCP5386 PWM Controller IC from onsemi (ON Semiconductor) is a high-performance 1- or 2-phase buck controller designed for CPU and chipset power regulation on laptop and desktop motherboards. It combines advanced differential voltage and current sensing with adaptive voltage positioning to deliver rapid response to load transients, making it suitable for modern VRM (Voltage Regulator Module) applications

Technical Specifications – NCP5386 PWM Controller IC

• One- or two-phase buck PWM controller for VRM applications

• Differential voltage and current sensing for accurate regulation

• Adaptive voltage positioning to improve transient response

• Dual-edge PWM control for fast load-step performance

• DAC output voltage range typically 0.5 V to 1.6 V for CPU core power

• Phase-to-phase current balancing for optimized multi-phase operation

• Compatible with Intel VR10.0, VR11.0 and AMD power specifications

• Compact QFN package (commonly 32-pin) suitable for motherboard integration