RT8880B
Overview
The RT8880B is a 3 + 2 phases PWM controller, and is compliant with AMD SVI2 Voltage Regulator Specification to support both CPU core (VDD) and Northbridge portion of the CPU (VDDNB). The RT8880B features CCRCOT (Constant Current Ripple Constant On-Time) with G-NAVP (Green-Native AVP), which is Richtek's proprietary topology.
- 3/2/1-Phase (VDD) + 2/1-Phase (VDDNB) PWM Controller
- 3 Embedded MOSFET Drivers
- G-NAVPTM Topology
- Support Dynamic Load-Line and Zero Load-Line
- Diode Emulation Mode at Light Load Condition
- SVI2 Interface to Comply with AMD Power Management Protocol
- Build-in ADC for VOUT and IOUT Reporting
- Immediate OV, UV and NV Protections and UVLO
- Programmable Dual OCP Mechanism
- 0.5% DAC Accuracy
