The ISL6307B controls microprocessor core voltage regulation by driving up to6 synchronous-rectified buck channels in parallel. Multiphase buck converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple currents. Lower ripple results in fewer components, lower component cost, reduced power dissipation, and smaller implementation area.

Features

• Precision multiphase Core Voltage Regulation

- Differential Remote Voltage Sensing

- ±0.5 System Accuracy Over Life, Load, Line and Temperature

- Adjustable Precision Reference-Voltage Offset

• Precision RDS(ON) or DCR Current Sensing

- Accurate Load-Line Programming

- Accurate Channel-Current Balancing

- Differential Current Sense

• Microprocessor Voltage Identification Input

- Dynamic VID™ Technology

- 8-Bit VID Input with Selectable VR11 Code and

Extended VR10 Code at 6.25mV Step

- 0.5V to 1.600V operation range

• Threshold-sensitive Enable Function for Power

Sequencing and VTT Enable

• Thermal Monitoring

• Internal 5V Shunt Regulator

• Programmable Temperature Compensation

• Overcurrent Protection

• Overvoltage Protection with OVP Output Indication

• 2, 3, 4, 5 or 6 Phase Operation

• Adjustable Switching Frequency up to 1MHz Per Phase