型号: | LP3990A-30QVF |
厂 商: | |
品牌/商标: | 微源半导体 |
产品类别: | 集成电路/IC- DC/DC电源芯片 |
联系人: | 颜先生/William |
电话: | 0755-82170220,21001680 |
微源 LP3990A-30QVF 低静态电流LDO稳压器
General Description
The LP3990 is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3990 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. The LP3990 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3990 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. It is available in the 1mm×1mm x2 SON packages.
Features
◆ Ultra-thin Package
◆ 2.5V- 5.5V Input Voltage Range
◆ Low Dropout : 240mV @ 300mA
◆ 1.2V, 1.5V, 1.8V, 2.5V, 2.8V,3.0V,3.3V and 5V Fixed
◆ 300mA Output Current, 450mA Peak Current
◆ High PSRR:-75dB at 1KHz
◆ 1uA Standby Current When Shutdown
◆ Available in 1mm×1mm TDFN-4 Package
◆ TTL-Logic-Controlled Shutdown Input
◆ Ultra-Fast Response in Line/Load transient
◆ Current Limiting and Thermal Shutdown Protection
◆ Quick start-up (typically 50uS)
Applications
◆ Portable Media Players/MP3 players
◆ Cellular and Smart mobile phone
◆ LCD
◆ DSC Sensor
◆ Wireless Card