General Description
The RT9009 is a high performance, 2.5A LDO regulator, offering extremely high PSRR and ultra-low dropout. Ideal for portable RF and wireless applications with demanding performance and space requirements.

Features
• Ultra Fast Response in Line/Load Transient
• < 1μA Shutdown Current
• Low Dropout : 520mV at 2A
• Wide Operating Voltage Ranges : 2.5V to 5.5V
• TTL-Logic-Controlled Shutdown Input
• Current Limiting Protection
• Thermal Shutdown Protection
• Low-ESR Ceramic Output Capacitor Required for Stability
• High Power Supply Rejection Ratio
• RoHS Compliant and 100% Lead (Pb)-Free

Applications
• Game Console
• CDMA/GSM Cellular Handsets
• Battery-Powered Equipment
• Laptop, Palmtops, Notebook Computers
• Hand-Held Instruments
• Mini PCI & PCI-Express Cards
• PCMCIA & New Cards
• Portable Information Appliances