The TP2087 is designed for portable RF and wireless applications with demanding performance and space requirements. The TP2087 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 TP2087 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The TP2087 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 : 220mV @ 300mA

* Wide Operating Voltage Ranges : 2.5V to 5.5V

* TTL-Logic-Controlled Shutdown Input

* Low Temperature Coefficient

* Current Limiting Protection

* Thermal Shutdown Protection

* Only 1μF Output Capacitor Required for Stability

* High Power Supply Rejection Ratio

* Custom Voltage Available

* RoHS Compliant and 100% Lead (Pb)-Free

Applications

* CDMA/GSM Cellular Handsets

* Battery-Powered Equipment

* Laptop, Palmtops, Notebook Computers

* Hand-Held Instruments

低噪音高速线性稳压IC

低噪音高速线性稳压IC

低噪音高速线性稳压IC 低噪音高速线性稳压IC