The ISL6316 controls microprocessor core voltage regulation by driving up to 4 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.

Microprocessor loads can generate load transients with extremely fast edge rates. The ISL6316 features a high bandwidth control loop and ripple frequencies up to >4MHz to provide optimal response to the transients.

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

   - 6-Bit VID Code at 12.5mV per Bit

   - 0.8375V to 1.600V Operation Range

• Thermal Monitoring

• Programmable Temperature Compensation

• Threshold-Sensitive Enable Pins to Enable VR and Ensure Power Sequencing Control

• Overcurrent Protection

• Overvoltage Protection

• 2, 3 or 4 Phase Operation

• Adjustable Switching Frequency up to 1MHz per Phase

• Package Option

   - QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline

   - QFN Near Chip Scale Package Footprint; Improves PCB Efficiency, Thinner in Profile

• Pb-Free Plus Anneal Available (RoHS Compliant)