General Description
The AAT3218 MicroPower™ Low Dropout Linear Regulator is ideally suited for portable applications where very fast transient response, extended battery life and small size are critical. The AAT3218 has been specifically designed for high speed turn on and turn off performance, fast transient response, good power supply ripple rejection (PSRR) and is reasonably low noise, making it ideal for powering sensitive circuits with fast switching requirements.

FEATUREs
• Low Dropout - 200mV at 150mA
• Guaranteed 150mA Output
• High accuracy ±1.5%
• 70µA Quiescent Current
• Fast line and load transient response
• High speed device turn-on and shutdown
• High Power Supply Ripple Rejection
• Low self noise
• Short circuit protection
• Over-Temperature protection
• Uses Low ESR ceramic capacitors
• Output noise reduction bypass capacitor
• Shutdown mode for longer battery life
• Low temperature coefficient
• 16 Factory programmed output voltages
• SOT23 5-pin or SC70JW 8-pin package

APPLICATIONs
• Cellular Phones
• Notebook Computers
• Portable Communication Devices
• Personal Portable Electronics
• Digital Cameras