RT9193

Features:

` Ultra-Low-Noise for RF Application
` Ultra-Fast Response in Line/Load Transient
` Quick Start-Up (Typically 50s)
` < 0.01A 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 1F Output Capacitor Required for Stability
` High Power Supply Rejection Ratio
` Custom Voltage Available
` RoHS Compliant and 100% Lead (Pb)-Free




Application

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




Pinout






Specifications

` Supply Input Voltage ...................................................................................................... 6V
` Power Dissipation, PD @ TA = 25°C
SC.70.5 ...................................................................................................................... 300mW
SOT.23.5 .................................................................................................................... 400mW
WDFN.6L 2x2 .............................................................................................................. 606mW
` Package Thermal Resistance (Note 4)
SOT.70.5, JA ....................................................................................................... 333°C/W
SOT.23.5, JA ....................................................................................................... 250°C/W
WDFN.6L 2x2, JA ................................................................................................ 165°C/W
` Junction Temperature ............................................................................................150°C
` Lead Temperature (Soldering, 10 sec.) .................................................................. 260°C
` Storage Temperature Range ...................................................................−65°C to 150°C
` ESD Susceptibility (Note 2)
HBM (Human Body Mode) .............................................................................................. 2kV
MM (Machine Mode) ......................................................................................................200V




Description

The RT9193 is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9193 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The RT9193 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The RT9193 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 SC-70-5, SOT-23-5, TSOT-23-5, WDFN-6L 2x2 and MSOP-8 packages.