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ISL6327

The ISL6327 controls microprocessor core voltage regulation by driving up to 6 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 ISL6327 utilizes Intersil's proprietary Active Pulse Positioning (APP) and Adaptive Phase Alignment (APA) modulation scheme to achieve the extremely fast transient response with fewer output capacitors.

Today's microprocessors require a tightly regulated output voltage position versus load current (droop). The ISL6327 senses the output current continuously by utilizing patented techniques to measure the voltage across the dedicated current sense resistor or the DCR of the output inductor. Current sensing provides the needed signals for precision droop, channel-current balancing, and overcurrent protection. A programmable integrated temperature compensation function is implemented to effectively compensate the temperature variation of the current sense element. The current limit function provides the overcurrent protection for the individual phase.

A unity gain, differential amplifier is provided for remote voltage sensing. Any potential difference between remote and local grounds can be completely eliminated using the remote-sense amplifier. Eliminating ground differences improves regulation and protection accuracy. The thresholdsensitive enable input is available to accurately coordinate the start-up of the ISL6327 with any other voltage rail. Dynamic-VIDTM technology allows seamless on-the-fly VID changes. The offset pin allows accurate voltage offset settings that are independent of VID setting.

ISL6327 特点
ISL6327 芯片订购指南
芯片型号 产品状态 温度范围 封装尺寸图
ISL6327CRZ 量产 民用级 48 Ld QFN
ISL6327CRZ-T 量产 民用级 48 Ld QFN T+R
ISL6327IRZ 量产 工业级 48 Ld QFN
ISL6327IRZ-T 量产 工业级 48 Ld QFN T+R
ISL6327EVAL4Z Coming Soon 评估板
ISL6327 应用技术支持与电子电路设计开发资源下载
  1. ISL6327 数据资料 datatSheet 下载.PDF
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