Single-Channel Output

LP3987H-Single Channel
600Output Current(mA):
1.2/1.5/1.8/2.5/2.8/3/3.3Output Voltage(V):
90Quiescent Current(uA):
2.5-6.0Input Voltage(V):
360@600Dropout Voltage(mV@mA)(typ):
High PSRR,Large CurrentSpecial Features:

500mA,Ultra-low noise, Small Package Ultra-Fast CMOS LDO Regulator

General Description

The LP3987H is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3987H 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 LP3987H also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3987H 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. 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 : 460mV @ 500mA  
1.2V, 1.5V, 1.8V, 2.5V, 2.8V 3.0V and 3.3V Fixed
500mA Output Current, 550mA Peak Current
High PSSR:-70dB at 1KHz  
< 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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