General Description

The MAX1606 is a step-up DC-DC converter that contains a 0.5A internal power switch and a 0.5A output isolation switch in an 8-pin µMAX package. The IC operates from a 2.4V to 5.5V supply voltage but can boost battery voltages as low as 0.8V up to 28V.

Features

♦ Adjustable Output Voltage up to 28V

♦ 20mA at 20V from a Single Li+ Battery

♦ True Shutdown (Output Disconnected from Input)

♦ Output Short-Circuit Protection

♦ 88 Efficiency

♦ Up to 500kHz Switching Frequency

♦ Selectable Inductor Current Limit (125mA, 250mA, or 500mA)

♦ 0.1µA Shutdown Current

♦ 8-Pin µMAX Package

Applications

LCD Bias Generators

Cellular or Cordless Phones

Palmtop Computers

Personal Digital Assistants (PDAs)

Organizers

Handy Terminals