RT6543A Datasheet High Efficiency Single Synchronous Buck PWM Controller

Manufacturer: Richtek

RT6543A high efficiency single synchronous buck pwm controller by Richtek - Datasheet Preview

Datasheet Details

Part number	RT6543A
Manufacturer	Richtek
File Size	333.21 KB
Description	High Efficiency Single Synchronous Buck PWM Controller
Download	RT6543A Download (PDF)

General Description

The RT6543A/B PWM controller provides high efficiency, excellent transient response, and high DC output accuracy for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM.

The RT6543A/B supports on chip voltage programming function between 0V and 1.8V by controlling VID1/VID0 inputs.

Compared with conventional current-mode PWMs, the RT6543A/B achieves high efficiency without any current sensing resistors.

Overview

® RT6543A/B High Efficiency Single Synchronous Buck PWM Controller for INTEL VCCIN AUX ICL and TGL.

Key Features

A High Efficiency Step-Down DC-DC Controller.
Built-in 1% Reference Voltage.
2-Bit Programmable Output Voltage with Integrated.
Adjustable Switching Frequency.
Input Voltage Range : 3V to 24V.
Internal Soft-Start to Reduce Inrush Current.
Capability of Driving Large Synchronous Rectifier MOSFETs.
Power Good Indicator.
Cycle-by-Cycle Current Limit.
Over-/Under-Voltage Protection.
Thermal Shutdown.
RT6543A : Slew Down Mode as VID Change.

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