ISL6227CAZ

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The ISL6227CAZ is a special purpose voltage regulator within Texas Instruments\' portfolio of power management integrated circuits (PMICs). This specific device is designed to meet the needs of advanced processor core power delivery designs. The device provides enhanced system performance, board space savings and maximum flexibility for optimizing processor core power designs. This article will explain the application field and working principle of the ISL6227CAZ.

Application Field

The ISL6227CAZ is an advanced 3-phase regulator, with enhanced analog and digital features. It is designed to meet the stringent requirements of high performance processor power delivery designs. The device eliminates the need for extensive external components and reduces solution size compared to conventional solutions. The device includes integrated VRDIS (Voltage Regulator Disable) to manage iGPU core voltage, by providing independent enable/disable control for each individual voltage rail. This feature reduces power consumption when the iGPU core is idle. The device also supports advanced DVS (Dynamic Voltage Scaling) sequencing for optimized performance. The device also provides adaptive Channel-to-Channel Output Signal synchronization. This allows the entire system to operate as a single 3-phase vibrant power delivery network.

The ISL6227CAZ provides wide input voltage range to support ASIC, FPGA and processor core power delivery designs. The device is suitable for use in advanced mobile, automotive, industrial and datacom applications. The device is qualified for the automotive market and is AEC-Q100 certified.

Working Principle

The ISL6227CAZ operates by converting an input voltage into a regulated output voltage. The device uses a buck topology, which is a type of DC-DC converter. It works by taking an input voltage and reducing it to an output voltage suitable for power delivery to the processor core. The device uses three 120° synchronized pulse width modulation (PWM) for controlled output voltage regulation. This synchronized PWM technique helps to eliminate AC ripple on the output rails. The device also supports integrated active voltage scaling to optimize output voltage range.

The ISL6227CAZ includes a comprehensive range of features to ensure proper processor core voltage operation. These features include multiple PWM modes, advanced input voltage range, and adaptive output voltage sequencing. The device also includes overcurrent and overvoltage protection to safeguard the processor core. The device also provides undervoltage lockout and thermal protection to prevent damage to the part. The device also includes programmable slew rate control to ensure compatibility with a wide range of processor cores.

Conclusion

The ISL6227CAZ is an advanced 3-phase regulator designed for processor core power delivery. The device eliminates the need for extensive external components and provides enhanced system performance, board space savings and maximum flexibility for optimizing processor core power designs. The device provides wide input voltage range, internal switching frequencies up to 2 MHz and integrated VRDIS for iGPU core voltage control. The device also provides programmable slew rate control to ensure compatibility with a wide range of processor cores. The device is suitable for use in advanced mobile, automotive, industrial and datacom applications.

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