Single-Channel Output

LP3984-Single Channel
300Output Current(mA):
1.5/1.8/2.5/2.8/3/3.3/3.5Output Voltage(V):
75Quiescent Current(uA):
2.5-6.0Input Voltage(V):
220 @ 300Dropout Voltage(mV@mA)(typ):
Shutdown,High PSRRSpecial Features:

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

General Description

The LP3984 is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3984 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The LP3984 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3984 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 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
 2V- 6.5V Input Voltage Range
 Low Dropout : 200mV @ 300mA
 1.2V, 1.3,1.5V, 1.8V, 2.5V, 2.8V 3.0V and 3.3V
 300mA Output Current, 550mA Peak Current
 High PSSR:-73
 < 0.01uA Standby Current When Shutdown
 Available in SOT23-5 Package
 TTL-Logic-Controlled Shutdown Input
 Ultra-Fast Response in Line/Load transient
 Current Limiting and Thermal Shutdown
 Quick start-up (typically 50uS)

Marking Information

Please see specification. 
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