GENERAL DESCRIPTION

The ADP1111 is part of a family of step-up/step-down switching regulators that operates from an input voltage supply of 2 V to 12 V in step-up mode and up to 30 V in step-down mode. The ADP1111 can be programmed to operate in step-up/stepdown or inverting applications with only 3 external components.

FEATURES

Operates from 2 V to 30 V Input Voltage Range

72 kHz Frequency Operation

Utilizes Surface Mount Inductors

Very Few External Components Required

Operates in Step-Up/Step-Down or Inverting Mode

Low Battery Detector

User Adjustable Current Limit

Internal 1 A Power Switch

Fixed or Adjustable Output Voltage

8-Pin DIP or SO-8 Package

APPLICATIONS

3 V to 5 V, 5 V to 12 V Step-Up Converters

9 V to 5 V, 12 V to 5 V Step-Down Converters

Laptop and Palmtop Computers

Cellular Telephones

Flash Memory VPP Generators

Remote Controls

Peripherals and Add-On Cards

Battery Backup Supplies

Uninterruptible Supplies

Portable Instruments