RT9193-18PB Datasheet PDF - Richtek

300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator ;•Ultra Low Noise for RF Application •Ultra Fast Response in Line/Load Transient •Quick Start-Up (Typically 50us) •<0.01 A Standby Current When Shutdown •Low Dropout : 220mV @ 300mA •Wide Operating Voltage Ranges : 2.5V to 5.5V •TTL-Logic-Controlled Shutdown Input •Low Temperature Coefficient •Current Limiting Protection •Thermal Shutdown Protection •Only 1 F Output Capacitor Required for Stability •High Power Supply Rejection Ratio •Custom Voltage Available • CDMA/GSM Cellular Handsets • Battery-Powered Equipment • Laptop, Palmtops, Notebook Computers • Hand-Held Instruments • PCMCIA Cards • Portable Information Appliances