FAN2508 Datasheet (PDF) Download
Fairchild Semiconductor
FAN2508

Description

The FAN2508/09 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 puters, and other portable devices. Features include extremely low power consumption and low shutdown current, low dropout voltage, exceptional loop stability able to acmodate a Block Diagrams EN VIN Bandgap Error Amplifier p VOUT ADJ Thermal Sense FAN2508 GND FAN2508-XX EN VIN Bandgap p VOUT ERR Error Amplifier Thermal Sense VIN Bandgap p VOUT EN BYP Error Amplifier GND Thermal Sense FAN2509-XX GND REV.

Key Features

  • The FAN2508/09 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
  • FAN2508-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
  • FAN2509-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