LP3990A-Single Channel

产品型号 输出电流(mA) 输出电压(V) 静态电流(uA) 输入电压(V) PSRR(dB) 精度(%) 压差(mV@mA)(typ) 特征 封装 规格书
LP3990A 300 1.2/1.8/2.8/3/3.3 50 2.0-6.0 -70 3 240 @ 300 Shutdown,High PSRR DFN4 1*1

300mA,Ultra-low noise, Small Package Ultra-Fast CMOS LDO Regulator

General Description

The LP3990A is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3990A performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. The LP3990A also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3990A consumes less than 1µA 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 X2SON packages.


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



 Ultra-thin Package
 2.2V- 5.5V Input Voltage Range
 Low Dropout : 240mV @ 300mA
 1.2V, 1.5V, 1.8V, 2.5V, 2.8V,3.0V,3.3V, 3.6Vand 5V Fixed
 300mA Output Current, 450mA Peak Current
 High PSSR:-75dB at 1KHz
 1uA Standby Current When Shutdown
 Available in 1mm×1mm X2SON Package
 TTL-Logic-Controlled Shutdown Input
 Ultra-Fast Response in Line/Load transient
 Current Limiting and Thermal Shutdown Protection
 Quick start-up  (typically 50uS)


Marking Information


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