DESCRIPTION
The TP2187 is designed for portable RF and wireless applications with demanding performance and space requirements. The TP2187 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 TP2187 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The TP2187 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 SOT-23-5 packages.

FEATURES
* Ultra Low Noise for RF Application
* Ultra Fast Response in Line/Load Transient
* Quick Start-Up (Typically 50us)
* <0.01μA Standby Current When Shutdown
*  Low Dropout :  460mV @ 500mA
* Wide Operating Voltage Ranges : 2.5V to 8.0V
* 500mA Output Current , 550mA Peak Current
* Low Temperature Coefficient
* Current Limiting Protection
* Thermal Shutdown Protection
* Only 1μF Output Capacitor Required for Stability
* High Power Supply Rejection Ratio
* TTL-Logic-Controlled Shutdown Input
* RoHS Compliant and 100% Lead (Pb)-Free

Applications
* CDMA/GSM Cellular Handsets
* Battery-Powered Equipment
* Laptop, Palmtops, Notebook Computers
* Hand-Held Instruments

 

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