FAN2503: CMOS Low Dropout Voltage Regulator

The FAN2502 / 03 family of micropower low-dropout voltage regulators utilize CMOS technology to offer a new level of cost-effective performance in GSM and TDMA cellular handsets, laptop and notebook portable computers, and other portable devices. Features include extremely low power consumption and low shutdown current, low dropout voltage, exceptional loop stability able to accommodate a wide variety of external capacitors, and the compact SOT23-5 surface-mount package. The FAN2502 / 03 family of products offer significant improvements over older BiCMOS designs and are pin-compatible with many popular devices. The output is thermally protected against overload.The FAN2502 and FAN2503 devices are distinguished by the assignment of pin 4:FAN2502-XX: pin 4 – BYP, to which a bypass capacitor may be connected for optimal noise performance. Output voltage is fixed, indicated by the suffix XX.FAN2503-XX: pin 4 – ERR, a flag which indicates that the output voltage has dropped below the specified minimumdue to a fault condition. The standard fixed output voltages available are 2.5 V, 3.3 V.

Features

• Ultra Low Power Consumption
• 150 mV dropout voltage at 150 mA
• 25 µA ground current at 150 mA
• Enable/Shutdown Control
• SOT23-5 package
• Thermal limiting
• 300 mA peak current
• Cellular Phones and accessories
• PDAs
• Portable cameras and video recorders
• Laptop, notebook and palmtop computers