GENERAL DESCRIPTION

The ADP1108 is a highly versatile micropower switch-mode dc-dc converter that operates from an input voltage supply as low as 2.0 V and typically starts up from 1.8 V.

FEATURES

Operates at Supply Voltages From 2.0 V to 30 V

Consumes Only 110 mA Supply Current

Step-Up or Step-Down Mode Operation

Minimum External Components Required

Low Battery Detector Comparator On-Chip

User-Adjustable Current Limit

Internal 1 A Power Switch

Fixed or Adjustable Output Voltage Versions

8-Pin DIP or SO-8 Package

APPLICATIONS

Notebook/Palm Top Computers

3 V to 5 V, 5 V to 12 V Converters

9 V to 5 V, 12 V to 5 V Converters

LCD Bias Generators

Peripherals and Add-On Cards

Battery Backup Supplies

Cellular Telephones

Portable Instruments