The LP3985 is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3985 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. The LP3985 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. It is available in the 5-lead of SOT23-3 and SOT89-3 packages.

 

 Portable Media Players/MP3 players

 Cellular and Smart mobile phone

 LCD

 DSC Sensor

 Wireless Card

 Ultra-Low-Noise for RF Application

 2.5V- 5.5V Input Voltage Range

 Low Dropout : 300mV @ 300mA

 300mA Output Current

 High PSSR:-68dB at 1KHz

 1uA Standby Current When Shutdown

 Available in SOT23-3/SOT89-3 Package

 TTL-Logic-Controlled Shutdown Input

 Ultra-Fast Response in Line/Load transient

 Current Limiting and Thermal Shutdown  Protection