RT8881A - Richtek

RT8881A Multi-Phase PWM Controller

The RT8881A is a multi-phases PWM controller. Moreover, it is compliant with AMD SVI2 Voltage Regulator Specification to support both CPU core (VDD) and Northbridge portion (VDDNB) of the CPU. The RT8881A adopts the G-NAVPTM (Green-Native AVP), which is a Richtek's proprietary topology. The G-NAVP makes it an easy setting controller to meet all AMD AVP (Adap.

Features

programmable power states with different sets of operating phase number, over clocking offset, switching frequency, load-line and protection setting. The platform master can optimize the performance and efficiency of the power according to different working scenarios via the I2C interface. The RT8881A also provides power good indication, over-current indication and dual OCP mechanism for AMD SVI2 CPU core and NB. It also features complete fault protection functions including overvoltage, under-voltage and negative-voltage protections. Features
 Dual Outputs :  4/3/2/1-Phase for VDD  2/1/0-.