Description
The YB1200 family consists of a series of 150mA ultra-low-noise, low dropout (LDO) linear regulators especially designed for battery-powered RF and wireless applications. The  YB1200 regulator achieves a low 250mV dropout at 150mA load current of 3.3V output, ultra-low output voltage noise of 15µVrms and PSRR of 57dB at 1KHz. 

Features
„ High Accuracy +-2%
„ Ultra-Low-Noise Low-Drop-Out Regulator with 1.8/2.5/2.6/2.8/3.0/3.3V Preset Outputs
„ Stable with 0.47µF Ceramic Capacitor for Any Load
„ Typical Output Current: 150mA
„ Low Quiescent Current: ~90µA
„ 250mV Dropout at 150mA Load (3.3V)
„ Only Need Input and Output Capacitors
„ Power Saving Shutdown Mode (<1µA)
„ Thermal Protection Shutdown
„ Built-In Internal Soft-Start
„ Output Short-circuit Current Limit Protection
„ Green package (RoHS) available

Applications
„ PDA, Palmtops and Notebook Computers
„ DSC, Handset Camera Modules
„ PCMCIA Cards, PC Cameras
„ USB Based Portable Devices (MP3, PMP)
„ GSM/GPRS/3G RF Transceiver Modules
„ Wireless LANs, Bluetooth Portable Radios