The RICHTEK IC is high quality!  Wide Operating Voltage Ranges : 2.5V to 5.5V
 Low-Noise for RF Application
 No Noise Bypass Capacitor Required
 Fast Response in Line/Load Transient
 TTL-Logic-Controlled Shutdown Input
 Low Temperature Coefficient
 Dual LDO Outputs (300mA/300mA)
 Ultra-low Quiescent Current 27μA/LDO
 High Output Accuracy 2%
 Short Circuit Protection
 Thermal Shutdown Protection
 Current Limit Protection
 Short Circuit Thermal Folded Back Protection
 Tiny TSOT-23-6 and 6-Lead/8-Lead/10-Lead WDFN Packages
 RoHS Compliant and 100% Lead (Pb)-Free
Applications
 CDMA/GSM Cellular Handsets
 Battery-Powered Equipment
 Laptop, Palmtops, Notebook Computers
 Hand-Held Instruments
 PCMCIA Cards
 Portable Information Appliances