Single-Channel Output

LP3989-Single Channel
600Output Current(mA):
AdjustableOutput Voltage(V):
90Quiescent Current(uA):
2.0-6.0Input Voltage(V):
220@300Dropout Voltage(mV@mA)(typ):
Shutdown,High PSRRSpecial Features:

600mA,Ultra-low noise, Small Package, Ultra-Fast CMOS LDO Regulator

General Description

The LP3989 is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3989 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 LP3989 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3989 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 feedback accuracy, current limiting protection, and high ripple rejection ratio. It is available in the 5-lead of SOT23-5 packages.


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



 Ultra-Low-Noise for RF Application
 2.2V- 6V Input Voltage Range
 Low Dropout : 280mV @ 400mA
 600mA Output Current, 750mA Peak Current
 High PSRR: -68dB at 1KHz
 < 0.01uA Standby Current When Shutdown
 Available in SOT23-5 and SOT223 Package
 Ultra-Fast Response in Line/Load transient
 Current Limiting and Thermal Shutdown Protection

Marking Information

Please see specification. 
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