RT6543AGQW集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

厂商型号	RT6543AGQW
参数属性	RT6543AGQW 封装/外壳为20-WFQFN 裸露焊盘；包装为卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带；类别为集成电路（IC）的PMIC-稳压器-DCDC开关式控制器；产品描述：IC REG CTRLR BUCK PWM WQFN-20
功能描述	High Efficiency Single Synchronous Buck PWM Controller for INTEL VCCIN AUX ICL and TGL
封装外壳	20-WFQFN 裸露焊盘
文件大小	338.35 Kbytes
页面数量	21 页
生产厂商	Richtek Technology Corporation
企业简称	RICHTEK【立锜科技】
中文名称	立锜科技股份有限公司官网
原厂标识	RICHTEK
数据手册	下载地址一下载地址二到原厂下载
更新时间	2025-8-2 14:36:00
人工找货	RT6543AGQW价格和库存，欢迎联系客服免费人工找货

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. Furthermore, the RT6543A/B has ability

to drive synchronous rectifier MOSFETs and enters diode

emulation mode at light load condition that also save lots

of power consumption. Besides, the RT6543A/B equips

with UVLO, OVP, UVP, OTP and current limit protection.

All above functions are integrated in a WQFN-20L-3x3

package.

特性 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

RT6543B : Decay Down Mode as VID Change