The RT9198T is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9198T performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The RT9198T also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The RT9198T consumes less than 0.01uA in shutdown mode and has fast turn-on time less than 50ms. RT9198T is short circuit thermal folded back protected. RT9198T lowers its OTP trip point from 165°C to 110°Cwhen output short circuit occurs (VOUT < 0.4V) providing maximum safety to end users. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the SOT-23-3, SOT-23-5 and SC-70-5 packages, the RT9198T also offers a range of 1.5V to 3.5V with 0.1V per step.
Note : RichTek Pb-free and Green products are : ►RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. ►Suitable for use in SnPb or Pb-free soldering processes.
• Short Circuit Thermal Folded Back Protection • Low-Noise for RF Application • Fast Response in Line/Load Transient • Quick Start-Up (Typically 50us) • < 0.01uA Standby Current When Shutdown • Low Dropout : 220mV @ 300mA • Wide Operating Voltage Ranges : 2.5V to 5.5V • TTL-Logic-Controlled Shutdown Input • Low Temperature Coefficient • Current Limiting Protection • Thermal Shutdown Protection • Only 1uF Output Capacitor Required for Stability • High Power Supply Rejection Ratio • Custom Voltage Available • RoHS Compliant and 100% Lead (Pb)-Free
