Description

The ADP1111AR-5 is a step-up/step-down switching regulator 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. It is part of a family of regulators that can be programmed to operate in step-up/step-down or inverting applications with only 3 external components.

Specifications and features

Some of the key specifications and features of the ADP1111AR-5 include:

• Operates from 2 V to 30 V Input Voltage Range
• 72 kHz Frequency Operation
• Utilizes Surface Mount Inductors
• Very Few External Components Required
• Low Battery Detector
• User Adjustable Current Limit
• Internal 1 A Power Switch
• Fixed or Adjustable Output Voltage
• Available in 8-Pin DIP or SO-8 Package

Application Scenarios

The ADP1111AR-5 can be used in various applications, including:

• 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

Comparison

Advantages and disadvantages of the ADP1111AR-5:

• Wide input voltage range from 2 V to 30 V
• Can operate in step-up/step-down or inverting mode
• Requires very few external components
• Flexible output voltage options

• Limited power output of 1 A
• Available in limited package options