RT8845A Overview
Description
The RT8845A is a 4/3/2/1 phase synchronous Buck PWM controller which is optimized for high performance graphic microprocessor and computer applications. The RT8845A adopts G-NAVPTM (Green Native AVP) which is Richtek's proprietary topology derived from finite DC gain of EA amplifier with current mode control.
Key Features
- Multi-Phase PWM Controller
- Power State Indicator 1P-CCM/4P-CCM/1P-DEM
- 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
