RT8848A Overview
The RT8848A/B is a 8/7/6/5/4/3/2/1 multi-phase synchronous Buck controller which is optimized for high performance graphic microprocessor and support nVidia OVR4i+ spec with PWM-VID interface. The RT8848A/B adopts AC G-NAVPTM (Green Native AVP) which is Richtek's proprietary topology derived from finite DC gain of internal GM amplifier with current mode control. By utilizing the AC G-NAVPTM topology, the operating...
RT8848A Key Features
- Multi-Phase PWM Controller
- PWM-VID Dynamic Voltage Control
- Support 1.8V PWM-VID Interface
- Power State Indicator
- LPC (Low Phase Count), PSI = Low
- APS (Auto Phase Shedding), PSI = Mid
- HPC (High Phase Count), PSI = High
- External Reference Input Control
- 8/7/6/5/4/3/2/1 Phase Hardware Setting
- Adjustable Soft-Start Time
RT8848A Applications
- GPU Core Power for OVR4i+ Spec