ISL6266A

Product Summary

The ISL6266A is a single-phase buck regulator implementing lntel IMVP-6 protocol, with embedded gate drivers. The heart of the ISL6266A is the patented R3 Technology Intersil 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. lntel Mobile Voltage Positioning (IMVP) is a smart voltage regulation technology effectively reducing power dissipation in lntel Pentium processors. To boost battery life, the ISL6266A supports DPRSLRVR (deeper sleep) function and maximizes the efficiency via automatically changing operation modes. At heavy load in the active mode, the regulator commands the continuous conduction mode (CCM) operation.

Parametrics

ISL6266A absolute maximum ratings: (1)Supply Voltage, VDD: -0.3 to +7V; (2)Battery Voltage, VIN: +28V; (3)Boot Voltage (BOOT): -0.3V to +33V; (4)Boot to Phase Voltage (BOOT-PHASE): -0.3V to +7V(DC); (5)Phase Voltage (PHASE): -7V (<20ns Pulse Width, 10μJ); (6)UGATE Voltage (UGATE): PHASE-0.3V (DC) to BOOT; (7)LGATE Voltage (LGATE): -0.3V (DC) to VDD+0.3V; (8)All Other Pins: -0.3V to (VDD +0.3V); (9)Open Drain Outputs, PGOOD, VR_TT#: -0.3 to +7V; (10)HBM ESD Rating>3kV.

Features

ISL6266A features: (1)Precision single-phase CORE voltage regulator 0.5% system accuracy over temperature. Enhanced load line accuracy; (2)Internal gate driver with 2A driving capability; (3)Microprocessor voltage identification input. 7-Bit VID input. 0.300V to 1.500V in 12.5mV steps. Support VID change on-the-fly; (4)Multiple current sensing schemes supported. Lossless inductor DCR current sensing. Precision resistive current sensing; (5)Thermal monitor; (6)User programmable switching frequency; (7)Differential remote voltage sensing at CPU die; (8)Overvoltage, undervoltage, and overcurrent protection; (9)Pb-free plus anneal available (RoHS compliant).

Diagrams