NCP81228 Datasheet - ON Semiconductor

NCP81228 8 + 2 Phase Output Controller

Pin No. 1 2 3 4 5 6 7 8 9 Pin Name IOUT EN SDIO ALERT# SCLK VR_RDY VCC PSYS VRMP Description Total output current monitor for eight *phase regulator Enable. High enables both rails Serial VID data interface Serial VID ALERT# Serial VID clock VR_RDY indicates both rails are ready to accept .

8 + 2 Phase Output Controller with SVID Interface for Notebook and Ultrabook CPU Applications NCP81228 The NCP81228 is a dual rail, eight + two phase buck solution optimized for Intel IMVP8 CPUs. The multi phase rail control system is based on Dual Edge pulse width modulation (PWM) combined with DCR current sensing. This provides an ultra fast initial response to dynamic load events and reduced system cost. The NCP81228 has an ultra low offset current moni.

NCP81228 Features

* Vin Range 4.5 V to 21 V

* Startup into Pre

* Charged Loads While Avoiding False OVP

* Digital Soft Start Ramp

* Adjustable Vboot

* High Impedance Differential Output Voltage Amplifier

* Dynamic Reference Injection

* Programmable Output Voltage Slew Rates

* Dyn

NCP81228 Datasheet (466.21 KB)