Description

The AAT3221IGV-1.7-T1 is a PowerLinear NanoPower low dropout (LDO) linear regulator that is specially designed for portable applications where extended battery life is crucial. It features an extremely low quiescent current of 1.1μA and a low dropout voltage of less than 200mV at the maximum output current of 150mA. The AAT3221IGV-1.7-T1 also includes an enable pin feature for power conservation in shutdown mode. It is an ideal choice for portable battery-powered devices such as cellular phones, digital cameras, handheld electronics, notebook computers, PDAs, portable communication devices, and remote controls.

Specifications and features

The AAT3221IGV-1.7-T1 offers the following specifications and features:

• 1.1μA quiescent current
• Low dropout voltage: 200mV (typical)
• Guaranteed 150mA output
• High accuracy: ±2%
• Current limit protection
• Over-temperature protection
• Extremely low power shutdown mode
• Low temperature coefficient
• Factory-programmed output voltages ranging from 1.5V to 3.5V
• Stable operation with virtually any output capacitor type
• Active high or low enable pin
• 4kV electrostatic discharge (ESD) protection
• Available in 5-pin SOT23 or 8-pin SC70JW package
• Temperature range: -40°C to +85°C

Application Scenarios

The AAT3221IGV-1.7-T1 is widely used in the following application scenarios:

• Cellular Phones
• Digital Cameras
• Handheld Electronics
• Notebook Computers
• PDAs
• Portable Communication Devices
• Remote Controls

Comparison

• Extremely low quiescent current
• Low dropout voltage
• High accuracy
• Current limit protection
• Over-temperature protection
• Low temperature coefficient
• Wide temperature range

• None identified