The ISL6261A is a single-phase buck regulator implementing lntel® IMVP-6® protocol, with embedded gate drivers. lntel® Mobile Voltage Positioning (IMVP) is a smart voltage regulation technology effectively reducing power dissipation in lntel® Pentium processors.

The heart of the ISL6261A is the patented R3 Technology™, Intersil’s Robust Ripple Regulator modulator. Compared with the traditional multi-phase buck regulator, the R3 Technology™ has faster transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient.

Features

• Precision single-phase CORE voltage regulator

- 0.5 system accuracy over temperature

- Enhanced load line accuracy

• Internal gate driver with 2A driving capability

• Microprocessor voltage identification input

- 7-Bit VID input

- 0.300V to 1.500V in 12.5mV steps

- Support VID change on-the-fly

• Multiple current sensing schemes supported

- Lossless inductor DCR current sensing

- Precision resistive current sensing

• Thermal monitor

• Power monitor indicating CPU instantaneous power

• User programmable switching frequency

• Differential remote voltage sensing at CPU die

• Overvoltage, undervoltage, and overcurrent protection

• Pb-free (RoHS compliant)