LP3980数据手册LPSemi中文资料规格书

描述 Description

The LP3980 is designed for portable RF and wireless applications demanding performance and space requirements. The LP3980 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 LP3980 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3980 consumes less than 0.01µA in shutdown mode and has fast turn-on time less than 50µs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.

特性 Features

 1.6V- 5.5V Input Voltage Range
 Low Dropout : 240mV @ 300mA
 500mA Output Current
 High PSSR: -76dB at 1KHz
 0.01uA Standby Current When Shutdown
 Ultra-Fast Response in Line/Load transient
 Current Limiting
 Thermal Shutdown Protection
 Available in SOT23-5/SOT23/TDFN-4 P

应用 Application

 Portable Media Players/MP3 players
 Cellular and Smart mobile phone
 LCD
 DSC Sensor
 Wireless Card