RT8845A Datasheet Multi-Phase PWM Controller

Manufacturer: Richtek

RT8845A multi-phase pwm controller by Richtek - Datasheet Preview

Datasheet Details

Part number	RT8845A
Manufacturer	Richtek
File Size	646.86 KB
Description	Multi-Phase PWM Controller
Download	RT8845A Download (PDF)

General 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.

By utilizing the GNAVPTM topology, the operating frequency of the RT8845A varies with VID, load and input voltage to further enhance the efficiency even in CCM.

Overview

® RT8845A Multi-Phase PWM Controller with PWM-VID Reference General.

Key Features

external reference input and PWMVID dynamic output voltage control, in which the feedback voltage is regulated and tracks external input reference voltage. Other features include adjustable switching frequency, dynamic phase number control, internal/external soft- start, power good indicator, and enable functions. 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.

More Datasheets from Richtek

Part Number	Description
RT8845B	Multi-Phase PWM Controller
RT8843C	Multi-Phase PWM Controller
RT8848A	Multi-Phase PWM Controller
RT8848B	Multi-Phase PWM Controller
RT8848C	Multi-Phase PWM Controller
RT8848D	Multi-Phase PWM Controller
RT8811B	Dual-Phase COT Buck PWM Controller
RT8811C	Dual-Phase COT Buck PWM Controller
RT8812A	Dual-Phase PWM Controller
RT8813C	Multi-Phase PWM Controller