LP3981 Datasheet (PDF) Download
Texas Instruments
LP3981

Description

Performance of the LP3981 device is optimized for battery-powered systems to deliver ultra-low-noise, extremely low dropout voltage, and low quiescent current.

Key Features

  • 300-mA Output Current
  • 60-dB PSRR at 1 kHz
  • Fast Turnon Time: 120 μs (typical) with CBYPASS =
  • 132-mV Typical Dropout with 300-mA Load
  • 35-μVrms Output Noise Over 10 Hz to 100 kHz
  • Logic Controlled Enable
  • Stable With Ceramic and High-Quality Tantalum
  • Thermal Shutdown and Short-Circuit Current Limit
  • Low Gives Excellent Power Capability

Applications

  • CDMA Cellular Handsets