ON NCP81248MNTXG

控制器，Intel IMVP84.75V ~ 5.25V

Overview

ON Semiconductor NCP81246 Three-Rail Controller offers an optimized 3-rail multi-phase buck solution for Intel IMVP8 compatible CPUs. The NCP81246 includes a two-phase controller and two one-phase controllers. Two-phase ControllerThe two-phase controller provides differential-inductor DCR current sensing, true differential voltage sensing, input voltage feed-forward, and adaptive voltage positioning to accurately regulate power for the IMVP8 Rail2. One-phase ControllersDesigners can use the two 1-phase controllers for the Rail1, Rail3 and, Rail4 rails. The two single-phase controllers support Core, GT, and SA rails in the 2-1-1, 1-2-1, and 1-1-1 configurations. The single-phase rails include a programmable ultra-low offset current monitor amplifier to deliver ultra-high accuracy current monitoring. RPM Operation The two-phase and one-phase controllers use ON Semiconductors patented high-performance RPM operation. The RPM operation maximizes transient response while ensuring for smooth transitions between discontinuous frequency scaling operation and continuous mode full-power operation.

Features

Vin Range 4.5 V to 25 V

Startup into Pre?Charged Loads While Avoiding False OVP

Adjustable Vboot (except Rail 3)

High Impedance Differential Output Voltage Amplifiers

Dynamic Reference Injection

Programmable Output Voltage Slew Rates

Dynamic VID Feed?Forward

Differential Current Sense Amplifiers for Each Phase

Switching Frequency Range of 200 kHz – 1.2 MHz

Digitally Stabilized Switching Frequency

Applications

Automotive 

Body electronics & lighting 

Communications equipment 

Datacom module 

Industrial 

Factory automation & control