General Description

The RT9065 is designed for portable RF and wireless

applications with demanding performance and space

requirements. The RT9065 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 RT9065 also works with low-ESR ceramic

capacitors, reducing the amount of board space necessary

for power applications, critical in hand held wireless

devices. The RT9065 consumes less than 0.01μA in

shutdown mode. The other features include low dropout

voltage, high output accuracy, current limiting protection,

and high ripple rejection ratio. The RT9065 is available in

the SOT-23-6 package.

Features

 Ultra-Low-Noise for RF Application

 Ultra-Fast Response in Line/Load Transient

 0.01μA Shutdown Current

 Low Dropout : 370mV @ 500mA

 Wide Input Voltage Range : 2.2V to 5.5V

 Adjustable Output Voltage

 TTL Logic Controlled Shutdown Input

 Low Temperature Coefficient

 Current Limiting Protection

 Thermal Shutdown Protection

 Only 1μF Output Capacitor Required for Stability

 High Power Supply Rejection Ratio

 RoHS Compliant and Halogen Free

Applications

 CDMA/GSM Cellular Handsets

 Battery Powered Equipment

 Laptop, Palmtops, Notebook Computers

 Hand Held Instruments

 PCMCIA Cards

 Portable Information Appliances