TPS71334

www.ti.com Actual Size (3 mm x 3 mm) TPS71319 TPS71334 SBVS055A – DECEMBER 2004 – REVISED JANUARY 2005 Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator with Integrated SVS FEATURES Dual 250 mA High-Performance RF LDOs Integrated Supply Voltage Supervisor Monitors VOUT2 Available in Fixed and Adjustable Voltage Options (1.2 V to 5.5 V) High PSRR: 65 dB at 10 kHz UltraLow Noise: 32 µVrms Fast Start-Up Time: 60 µs Stable with 2.2 µF Ceramic Capacitor Excellent Load/Line Transient Response Very Low Dropout Voltage: 125 mV at 250 mA Independent Enable Pins Thermal Shutdown and Independent Current Limit Available in Thermally-Enhanced SON Package: 3mm x 3mm x 1mm APPLICATIONS Cellular and Cordless Phones Wireless PDA/Handheld Products PCMCIA/Wireless LAN Applications Digital Camera/Camcorder/Internet Audio DSP/FPGA/ASIC/Controllers and Processors DRC PACKAGE 3mm x 3mm SON (TOP VIEW) IN 1 RESET 2 OUT1 3 OUT2 4 GND 5 10 EN1 9 NC 8 EN2 7 FB2/NC 6 NR PSRR (dB) DESCRIPTION The TPS713xx family of low-dropout (LDO) voltage regulators is tailored to noise-sensitive and RF applications. These products feature dual 250 mA LDOs with ultralow noise, high power-supply rejection ratio (PSRR), and fast transient and start-up response. These devices also feature an integrated supply voltage supervisor (SVS) that monitors the voltage at OUT2 and will assert if the voltage falls to 95% (typical) of the measured output. Each regula...