General Description

The AAT3172 is a high output current, high efficiency, low noise, low profile charge pump DC/DC converter, ideal for multi-function LED photo-flash applications where solution cost, size, and efficiency are critical.

Features

• VIN Range: 2.7V to 5.5V

• 600mA Output Current

• Tri-Mode 1X/1.5X/2X in Current Mode

• Voltage Mode Operation: 1.5X, 100mA

• Dual Regulated Current Sinks

• Current Match Between Current Sinks

• 32 Current Steps Set by AS2Cwire

• 1µF Input, Output, and Flying Capacitors

• <1.0µA of Shutdown

• Small Application Circuit

• No Inductors

• Automatic Soft Start

• 12-Pin TDFN 3x3mm Package

• -40°C to +85°C Temperature Range

Applications

• Camera Phones

• Digital Still Cameras (DSCs)

• PDAs and Notebook PCs

• Smart Phones