Update: 30 September, 2023
ISL6265 is a multi-output controller with integrated MOSFET drivers from Intersil for AMD SVI capable mobile CPUs. The ISL6265 features a single phase controller that powers the Northbridge (VDDNB) portion of the CPU. The remaining two controller channels can be configured for two-phase or individual single-phase outputs. For uniplane CPU applications, the ISL6265 is configured as a two-phase buck converter. This allows the controller to interleave channels to effectively double the output voltage ripple frequency and thereby reduce output voltage ripple amplitude with fewer components, lower component cost, reduced power dissipation, and smaller area. For dual-plane processors, the ISL6265 can be configured as independent single-phase controllers powering VDD0 and VDD1. The heart of the ISL6265 is Intersil’s patented R3 Technology™, the Robust Ripple Regulator modulator. Compared with the traditional buck regulator, the R3 Technology™ has a faster transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient. The Serial VID Interface (SVI) provides the means for the CPU to communicate with the ISL6265 via the I²C bus and thus receive input voltage, output voltage, and temperature information.
File format: PDF
Size: -
MD5 Checksum: 544F7B3E0201E1D99039C915F585DDE8
Publication date: 28 March, 2012
Downloads: -
PDF Link: intersil ISL6265 handbook PDF