General Description
The RT9198/A is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9198/A 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 RT9198/A also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The RT9198/A consumes less than 0.01uA in shutdown mode and has fast turn-on time less than 50us.
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,
TSOT-23-3, TSOT-23-5, SC-70-5, SC-82, MSOP-8 and WDFN-6L 2x2 packages, the RT9198/A also offers a range from 1.5V to 5.0V with 0.1V per step.

Features
*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

Applications
*CDMA/GSM Cellular Handsets
*Battery-Powered Equipment
*Laptop, Palmtops, Notebook Computers
*Hand-Held Instruments
*PCMCIA Cards
*Portable Information Appliances

RT9198A, RT9198-15PU5, RT9198-16PU5

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