AMS1505V

Advanced Monolithic Systems AMS1505V 5A ULTRA LOW DROPOUT VOLTAGE REGULATORS RoHS compliant FEATURES Adjustable or Fixed Output 1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 3.5V and 5.0V Output Current of 5A Low Dropout, 350mV max. at 5A Output Current Fast Transient Response Remote Sense APPLICATIONS High Speed Video/Graphic Cards Post Regulators for Switching Supplies Microprocessor Supply Adjustable Power Supply Notebook/Personal Computer Supplies High Current Regulators GENERAL DESCRIPTION Designed specially for video applications where a very low dropout is critical, the AMS1505V series of adjustable and fixed low dropout voltage regulators provide 5A output current to power the new generation of high speed video cards. The dropout voltage of the device is 200mV max. at 3A loads and rising to 350mV at maximum output current. A second low current input voltage 1V or greater then the output voltage is required to achieve this dropout. New features have been added to the AMS1505V: a remote Sense pin is brought out virtually eliminating output voltage variations due to load changes. The typical load regulation, measured at the Sense pin, for a load current step of 100mA to 5A is less than 1mV. The AMS1505V series has fast transient response. To further improve the transient response the addition of a small capacitor on the Adjust pin is recommended. The AMS1505V series are ideal for generating supplies of 2V to 3V on boards where both 5V and 3.3V supplies are ava...