RT8845B Overview
The RT8845B is a 4/3/2/1 phase synchronous Buck PWM controller which is optimized for high performance graphic microprocessor and puter applications. The RT8845B adopts G-NAVPTM (Green Native AVP) which is Richtek's proprietary topology derived from finite DC gain of EA amplifier with current mode control. By utilizing the GNAVPTM topology, the operating frequency of the RT8845B varies with VID, load and input...
RT8845B Key Features
- Multi-Phase PWM Controller
- Power State Indicator
- Support 1.8V PWM-VID Interface
- External Reference Input Control
- PWM-VID Dynamic Voltage Control
- Dynamic Phase Number Control
- Internal/External Soft-Start
- Adjustable Current Limit Threshold
- Adjustable Switching Frequency
- UVP/OVP Protection