DESCRIPTION

· The ISL68134 is a digital dual output, flexible multiphase (X+Y≤4) PWM controller with Adaptive Voltage Scaling (AVSBus) interface.

· It supports various phase configurations up to four phases across two outputs (e.g., 3+1, 2+2, 2+1, 4+0).

· Combines PMBus and AVSBus interfaces to meet demanding power supply requirements.

· Uses Intersil’s proprietary linear synthetic digital current modulation for superior transient response and tuning ease.

· Features on-chip nonvolatile memory for storing user-selectable configurations via pin-strap.

· Includes automatic phase add/drop for optimal efficiency across load ranges.

· Comprehensive fault management system ensures high reliability.

FEATURES

· PMBus 1.3 and AVSBus compliant with telemetry for VIN, VOUT, IOUT, power IN/OUT, temperature, and fault status.

· Advanced linear digital modulation with zero latency synthetic current control and dual edge modulation.

· Flexible phase configuration (4+0, 3+1, 2+2) and diode braking for overshoot reduction.

· Differential remote voltage sensing ensures ±0.5% closed-loop accuracy.

· Highly accurate current sensing for load line regulation and OCP.

· Comprehensive fault management includes pulse-by-pulse phase current limiting, total output current protection, and black box recording.

· Intuitive configuration via PowerNavigator GUI with NVM for up to eight configurations.

APPLICATIONS

· Networking equipment.

· Telecom/datacom equipment.

· Server/storage equipment.

· Point-of-load power supply (Memory, DSP, ASIC, FPGA).