ADI ADP1173AN-5

The ADP1173 is part of a family of step-up/step-down switching regulators that operates from an input supply voltage of as little as 2V to 12V in step-up mode and to 30V in step-down mode. The ADP1173 consumes as little as 110 μA in standby mode, making it ideal for applications that need low quiescent current. An auxiliary gain amplifier can serve as a low battery detector, linear regulator (under voltage lockout) or error amplifier. The ADP1173 can deliver 80 mA at 5V from a 3V input in step-up configuration or 100 mA at 5V from a 12V input in step-down configuration. For input voltages of less than 2V use the ADP1073.

• Operates From 2.0 V to 30 V Input Voltages
• Only 110 μA Supply Current (Typical)
• Step-Up or Step-Down Mode Operation
• Very Few External Components Required
• Low Battery Detector On-Chip
• User-Adjustable Current Limit
• Internal 1 A Power Switch
• Fixed or Adjustable Output Voltage Versions
• 8-Pin DIP or SO-8 Package

• Notebook and Palmtop Computers
• Cellular Telephones
• Flash Memory Vpp Generators
• 3V to 5 V, 5 V to 12 V Converters
• 9 V to 5V, 12 V to 5 V Converters
• Portable Instruments
• LCD Bias Generators