FAN2512: CMOS Low Dropout Voltage Regulator

The FAN2512/13 family of micropower low-dropout voltage regulators utilize CMOS technology to offer a new level of cost-effective performance in GSM, TDMA, and CDMA 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. In addition, the FAN2512/13 family offer the fast power-cycle time required in CDMA handset applications. These products offer significant improvements over older BiCMOS designs and are pin-compatible with many popular devices. The output is thermally protected against overload. FAN2512 and FAN2513 versions are distinguished by the assignment of pin 4: FAN2512: pin 4 - ADJ, allowing the user to adjust the output voltage over a wide range using an external voltage divider. FAN2512-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. FAN2513-XX: pin 4 - /ERR, a flag which indicates that the output voltage has dropped below the specified minimum due to a fault condition.The standard fixed output voltages available are 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V, and 3.3V. Custom output voltage are also available: please contact your local Fairchild Sales Office for information.

Features

• Ultra Low Power Consumption
• Enable optimized for CDMA time slices
• 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