General Description
The AAT3237 MicroPower low dropout (LDO) linear regulator is ideally suited for portable applications where low noise, extended battery life, and small size are critical. The AAT3237 has been specifically designed for low output noise performance, fast transient response, and high power supply rejection ratio (PSRR).

FEATUREs
• Low Dropout: 400mV at 300mA
• Guaranteed 300mA Output
• High Accuracy ±1.5%
• 70µA Quiescent Current
• High Power Supply Ripple Rejection
• Power-OK (POK) Output
• Fast Line and Load Transient Response
• Short-Circuit Protection
• Over-Temperature Protection
• Uses Low Equivalent Series Resistance (ESR) Ceramic Capacitors
• Shutdown Mode for Longer Battery Life
• Low Temperature Coefficient
• 13 Factory-Programmed Output Voltages
• SOT23 6-Pin or SC70JW 8-Pin Package

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