Single-Channel Output

LP3992-Single Channel
300Output Current(mA):
1.2/1.5/1.8/2.5/2.8/3/3.3/5.0Output Voltage(V):
75Quiescent Current(uA):
2-6Input 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 LP3992 is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3992 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. The LP3992 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3992 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 and SC-70 packages.


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



Ultra-Low-Noise for RF Application 
2V- 5.5V Input Voltage Range
Low Dropout : 220mV @ 300mA 
1.2V, 1.5V, 1.8V, 2.5V, 2.8V,3.0V,3.3V and 5V Fixed
300mA Output Current, 550mA Peak Current
High PSSR:-75dB at 1KHz 
< 0.01uA Standby Current When Shutdown
Available in SOT23-5 and SC-70 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

Please see specification. 
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