RT9020

RT9020 500mA, Low Dropout, Low Noise Ultra-Fast With Soft Start CMOS LDO Regulator General D escription The RT9020 is a high-perf ormance, 500mALDO regulator , offering extremely high PSRR n ad ultra-low dropout, ide al for portable RF a nd wireless applications with dem anding performance and space requirements. The RT9020 quiescent current is a s low as 25μA, further prolonging the battery life. The RT9020 also works with low-ESR cera mic ca pacitors, reducing the mount a of board space necessary for power applications, critical in handheld wireless devices. The RT9020 consumes typical 0.7 μA in shutdown mode and has fast turn-on time less than 70 μs (without C SS). The other features include ultra-low dropout voltage, high output a ccuracy, current li miting prote ction, a nd high ri pple rejection ratio. Tiny packages SOT-23-5 and SC-70-5 are available. Feature s Wide Operating Voltage Ranges : 2.2V to 5.5V Low Dropout : 250mV at 500mA 5mA Discharge Current of V OUT when IC Shutdown Ultra-Low-Noise for DSC Application Ultra-Fast Response in Line/Load Transient Current Limiting Protection Thermal Shutdown Protection High Power Supply Rejection Ratio Output Only 1μF Capacitor Required for Stability TTL-Logic-Controlled Shutdown Input RoHS Compliant and 100% Lead (Pb)-Free Applications Digital Still Camera CDMA/GSM Cellular Ha ndsets Portable Information Appliances Laptop, Palmtops,Notebook Computers Mini PCI & PCI-Express Cards PCMCIA & New Cards Ordering Information RT9...