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ISL6307

The ISL6307 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 ISL6307 features a high bandwidth control loop and ripple frequencies up to 6MHz to provide optimal response to the transients.

Today's microprocessors require a tightly regulated output voltage position versus load current (droop). The ISL6307 senses current by utilizing patented techniques to measure the voltage across the on resistance, RDS(ON), of the lower MOSFETs or DCR, of the output inductor during the lower MOSFET conduction intervals. Current sensing provides the needed signals for precision droop, channel-current balancing, and overcurrent protection. A programmable internal temperature compensation function is implemented to effectively compensate for the temperature coefficient of the current sense element.

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 ISL6307 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.

ISL6307 特点
ISL6307 芯片订购指南
芯片型号 产品状态 温度范围 封装尺寸图
ISL6307CRZ 量产 民用级 48 Ld QFN
ISL6307CRZ-T 量产 民用级 48 Ld QFN T+R
ISL6307IRZ 量产 工业级 48 Ld QFN
ISL6307IRZ-T 量产 工业级 48 Ld QFN T+R
ISL6307 应用技术支持与电子电路设计开发资源下载
  1. ISL6307 数据资料 datatSheet 下载.PDF
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