AAT3111IGU-3.3-T1

General Description
The AAT3111 ChargePump is a MicroPower switched capacitor voltage converter that delivers a regulated output. No external inductor is required for operation. Using three small capacitors, the AAT3111 can deliver up to 150mA to the voltage regulated output. The AAT3111 features very low quiescent current and high efficiency over a large portion of its load range, making this device ideal for battery-powered applications. Furthermore, the combination of few external components and small pack­age size keeps the total converter board area to a mini­mum in space-restricted applications.
The AAT3111 operates in an output-regulated voltage doubling mode. The regulator uses a pulse-skipping technique to provide a regulated output from a varying input supply. The AAT3111 contains a thermal manage­ment circuit to protect the device under continuous out­put short-circuit conditions.
The AAT3111 is available in a Pb-free, surface-mount 6-pin SOT23 or 8-pin SC70JW package and is rated over the -40°C to +85°C temperature range.

 Features
• Step-Up Type Voltage Converter
• Input Voltage Range:
▪ AAT3111-3.6: 1.8V to 3.6V
▪ AAT3111-3.3: 1.8V to 3.3V
• MicroPower Consumption: 20μA
• 3.6V, 3.3V Regulated ±4% Output
• 3.6V Output Current
▪ 100mA with VIN ≥ 3.0V
▪ 20mA with VIN ≥ 2.0V
• 3.3V Output Current
▪ 100mA with VIN ≥ 2.5V
▪ 20mA with VIN ≥ 1.8V
• High Frequency 750kHz Operation
• Shutdown Mode Draws Less Than 1μA
• Short-Circuit/Over-Temperature Protection
• 2kV ESD Rating
• SC70JW-8 or SOT23-6 Package

 Applications
• Battery Back-Up Supplies
• Digital Cameras
• Handheld Electronics
• MP3 Players
• PDAs

Documents:
datasheet