AAT3258ITS-3.3-R

The AAT3258ITS-3.3-R from Skyworks Solutions Inc. is a linear voltage regulator designed for higher current and lower dropout power applications. It is a versatile, low cost, low power and easy-to-configure controller that provides low dropout performance and extremely fast transient response for output voltages of 3.3V. The AAT3258ITS-3.3-R is intended for digital power applications, such as personal digital and mobile applications, that require class 1 accuracy of ±1% over line, load, and temperature.

The AAT3258ITS-3.3-R delivers a very high power density and features a high output accuracy over line, load, and temperature variations. It is designed with a low power cost in mind that provides a very low quiescent current of 1.3 mA and a maximum input voltage of 5.5V to ensure power savings for small battery driven systems.

The AAT3258ITS-3.3-R operating range is specified over an input voltage range of 0.8V to 5.5V and output voltage range of 3.3V with absolute maximum ratings of 6V and 6.5V at TA +25°C. Current limit is guaranteed at 4A and short circuit protection, over temperature protection and current limit protection all feature. Additionally, this step-down, high efficiency voltage regulator offers a low quiescent current mode, unity-gain output voltage and fast, accurate over-temperature protection.

The AAT3258ITS-3.3-R linear regulator is a monolithic three-terminal (GND, VIN and VOUT) high-performance adjustable regulator, designed to accept input voltages ranging from 0.8V to 6V and provide output voltages from 0V to 6V. Its low dropout voltage operation and fast transient response makes it an ideal solution for powering embedded applications with 3.3V output voltage such as low power digital base band, wired and wireless applications.

The AAT3258ITS-3.3-R utilizes an advanced error amplifier with fast response times to improve poise and reduce output voltage modulation. The amplifier feature short-circuit and over-temperature protection, and load regulation of less than ±2mV over a wide load range. The AAT3258ITS-3.3-R includes on-chip multiple voltage detector circuitry, providing status output to detect low-battery voltage and shutdown current sourcing. Output voltage can be easily adjusted by an external resistor divider network.

In summary, the AAT3258ITS-3.3-R linear voltage regulator is an easy-to-configure controller that delivers a very high power density and features a high output accuracy over line, load, and temperature variations. It also offers power savings for small battery driven systems, and an on-chip multiple voltage detector circuitry. With its wide range of operating temperature and its fast transient response, the AAT3258ITS-3.3-R is ideal for low power digital base band and wired and wireless applications.