IR3086MPBF

Series:	XPhase™
Packaging:	Strip
Part Status:	Obsolete
Applications:	Processor
Current - Supply:	10mA
Voltage - Supply:	8.4 V ~ 14 V
Operating Temperature:	0°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	20-VFQFN Exposed Pad
Supplier Device Package:	20-MLPQ (4x4)
Base Part Number:	IR3086MPBF

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Application Field and Working Principle of IR3086MPBF

The IR3086MPBF is a precision integrated high-performance, 6+1 phase Power Management Integrated Circuit (PMIC) for desktop and mobile CPU applications, such as Intel® Haswell and Xeon® platforms. It is designed to power the processor, Graphics Processing Unit (GPU), system memory, and I/O peripherals using multiple phases with digital PMIC solution. This PMIC provides flexible power sequencing and control, choice of output voltage levels, improved power delivery, and advanced thermal management features.

Application Field

The IR3086MPBF PMIC is specifically designed for desktop and mobile CPU applications running on Intel chipsets like Haswell and Xeon. It provides a comprehensive and efficient solution to power the processor, GPU, I/O and system memory. This PMIC addresses both voltage and power requirements and provides power sequencing and control as well as thermal management features.

Working Principle

The IR3086MPBF is a 6+1 phase PMIC, with each phase capable of delivering up to 24A of current. All phases are digitally managed and monitored, enabling the PMIC to detect the current load and the voltage at the output of each phase, adjust the output voltage accordingly, and ensure optimal current delivery.The power management and control is achieved through an internal temperature-compensated voltage reference (VCORE), which is used to set the output voltage. The VCORE and output voltage are monitored in real time, and the output of each phase is dynamically controlled to adjust the voltage and current delivery. Additionally, each phase can be set to operate in one of two modes: Constant Voltage (CV) or Constant Frequency (CF). In CV mode, the output is maintained at a constant voltage, while in CF mode the output frequency is maintained for higher accuracy and lower power consumption.Another feature of the PMIC is its improved current sensing capability, which monitors the power delivery each phase is delivering and adjusts accordingly. This provides better control and precision of the current delivery. Additionally, the PMIC has advanced thermal management features, allowing for the system to provide better protection against over-temperature conditions and maintain the proper power delivery even in high-stress, thermally-limited applications.

Conclusion

The IR3086MPBF integrates advanced power management and control solutions into one PMIC designed specifically to meet the demanding needs of desktop and mobile CPUs. It has multiple phases capable of delivering up to 24A of current each, dynamically managed and monitored, adjustable output voltage range, temperature compensated voltage reference, improved current sensing and advanced thermal management features. All of these features combine to provide desktop and laptop CPUs with a comprehensive and efficient power solution.

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