General Description

The RT8023 combines two low dropout (LDO) linear regulators and a step-down converter with an input voltage range of 2.6V to 5.5V. Each output voltage is adjustable from 0.8V to 5V. With independent Enable and PowerGood pins for each regulator, it is easy to control the power up sequence, which is important in some applications.

Features

● Converter Input Voltage Range : 2.6V to 5.5V, LDO Input Voltage Range : 2.4V to 5.5V

● Low-Noise LDO for RF Application

● Ultra-Fast Response in Line/Load Transient

● LDO Turn-On Time Less Than 40us

● Only 1μF LDO Output Capacitor Required for Stability

● Current Limiting Protection

● 1.5A, High Efficiency Step-Down Converter

● 1.2MHZ Constant Switching Frequency

● Low RDS(ON) Internal Switches

● No Schottky Diode Required

● 0.8V Reference Allows Low Output Voltage

● Low Dropout Operation : 100 Duty Cycle Internally Compensated

● < 2μA Shutdown Current

● Power Good Output Voltage Monitor

● Internal Soft-Start for PWM Converter

● Easy Power Sequence Control

● Over Temperature Protection

● Short Circuit Protection

● Thermally Enhanced 24-Lead WQFN Package

● RoHS Compliant and 100 Lead (Pb)-Free

Applications

● Portable Instruments

● Microprocessors and DSP Core Supplies

● Cellular Phones

● Wireless and DSL Modems

● PC Cards

● Digital Cameras

RT8023GQW属于集成电路（IC） > 线性稳压器控制器。立绮科技制造生产的RT8023GQW稳压器 - 线性 + 开关此产品族中的产品用于构建执行 DC-DC 转换或电压调节功能的电路，采用的是开关模式和线性稳压器功能的组合。虽然具体的拓扑各不相同，但此类产品的主要目的是将开关模式技术的效率优势与线性稳压技术的低噪声特性结合在一起。