Description
The YB1211 is a low-noise, low dropout (LDO) linear regulator with enable function and external adjustable output voltage. It operates at an input supply of 2.0~6.0V and is able to output voltages ranging from 1.23V (The YB1211 internal reference voltage) to 5V by a feedback from a pair of resistor divider.

FEATUREs
• 1.235V Internal Reference Voltage
• Adjustable Output Voltage : 1.22~5.0V
• Low-Noise and Low-Drop-Out
• Typical Output Current : 300mA
• Low Quiescent Current: ~60μA
• 320mV Dropout at 300mA 3.3V Output
• Stable with 1.0μF Ceramic Capacitor
• Only Need Input and Output Capacitors
• Thermal Protection Shutdown
• Output Short-Circuit Current Limit
• Built-In Internal Soft-Start
• Green Package (RoHS) Available

APPLICATIONs
• PDA, Notebook, PC Computers
• DSC, Handset Camera Modules
• PCMCIA Cards, PC Cameras
• USB Based Portable Devices
• GSM/GPRS/3G RF Transceiver
• Wireless LANs
• Bluetooth Portable Radios
• Battery-Powered Devices