Voltage regulator powers next-generation graphics processing units
Intersil's latest single-phase buck voltage regulator is designed to power next-generation graphics processing units (GPUs) or graphics cores used on Intel Santa Rosa platforms. The device reduces power consumption and enhances the performance of the GPU by dynamically changing output voltage and operation modes corresponding to the advanced GPU control protocol.The
Compared with traditional single-phase buck regulators, Intersil’s R3-based converter provides better transient response and efficiency and is capable of changing the voltage output when the GPU is in suspend or sleep mode.
To boost battery life, the controller has the flexibility to go to lower switching frequency at DCM either through internal automatic inductor current sensing or programmed by VID.
Key features of the ISL6263 include enhanced loadline accuracy, internal gate driver with 2A driving capability, microprocessor voltage identification input, selection of audio switching frequency operation disable/enable for higher light load efficiency, differential remote voltage sensing, together with over-voltage, under-voltage and over-current protection.
Target applications are notebook computers systems, LCD PC systems, SAN (storage-area network) or NAS (network-attached storage) systems, point-of-sale (POS) terminals, and blade servers.