LP3999

LP3999 www.ti.com SNVS207E – JUNE 2003 – REVISED MAY 2013 LP3999 Low Noise 150mA Voltage Regulator for RF/Analog Applications Check for Samples: LP3999 FEATURES 1 2 5 pin DSBGA Package Stable with Ceramic Capacitor Logic Controlled Enable Fast Turn-on Thermal-overload and short-circuit protection −40 to +125°C junction temperature range for operation KEY SPECIFICATIONS 2.5V to 6.0V Input Range Accurate Output Voltage; ±75mV / 2% 60 mV Typical Dropout with 150 mA Load. Vout > 2.5V Virtually Zero Quiescent Current when Disabled 10 μVrms Output Noise Over 10Hz to 100kHz Stable with a 1 μF Output Capacitor Ensured 150 mA Output Current Fast Turn-on Time; 140 μs (Typ.) APPLICATIONS GSM Portable Phones CDMA Cellular Handsets Wideband CDMA Cellular Handsets Bluetooth Devices Portable Information Appliances Handheld MP3 Devices DESCRIPTION The LP3999 regulator is designed to meet the requirements of portable wireless battery-powered applications and will provide an accurate output voltage with low noise and low quiescent current. Ideally suited for powering RF/Analog devices this device will also be used to meet more general circuit requirements. For battery powered applications the low dropout and low ground current provided by the device allows the lifetime of the battery to be maximized.The inclusion of an Enable(disable) control can be used by the system to further extend the battery lifetime by reducing the power consumption to virtual...