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