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MAX17582,pdf datasheet (Dual-P
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2009-08-26
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The MAX17582 is a 2-/1-phase-interleaved Quick-PWM™ step-down VID power-supply controller for notebook CPUs. True out-of-phase operation reduces input-ripple-current requirements and output-voltage ripple, while easing component selection and layout difficulties. The Quick-PWM control provides instantaneous response to fast load-current steps. Active voltage positioning reduces power dissipation and bulk output capacitance requirements and allows ideal positioning compensation for tantalum, polymer, or ceramic bulk output capacitors.
A slew-rate controller allows controlled transitions among VID codes, controlled soft-start and shutdown, and controlled exit from suspend. A thermistor-based temperature sensor provides a programmable thermal-fault output (active-low VRHOT). A current-monitor output (IMON) provides an analog current output proportional to the power consumed by the CPU. The MAX17582 includes output undervoltage and thermal protection. When any of these protection features detect a fault, the controller shuts down. A voltage-regulator power-OK (PWRGD) output indicates the output is in regulation. Additionally, the MAX17582 features true differential current sense and a phase-good (PHASEGD) output that indicates a phase imbalance fault condition.
The MAX17582 implements the Intel IMVP-6.5 VID code set. The MAX17582 is available in a 6mm x 6mm, 48-pin TQFN package.
A slew-rate controller allows controlled transitions among VID codes, controlled soft-start and shutdown, and controlled exit from suspend. A thermistor-based temperature sensor provides a programmable thermal-fault output (active-low VRHOT). A current-monitor output (IMON) provides an analog current output proportional to the power consumed by the CPU. The MAX17582 includes output undervoltage and thermal protection. When any of these protection features detect a fault, the controller shuts down. A voltage-regulator power-OK (PWRGD) output indicates the output is in regulation. Additionally, the MAX17582 features true differential current sense and a phase-good (PHASEGD) output that indicates a phase imbalance fault condition.
The MAX17582 implements the Intel IMVP-6.5 VID code set. The MAX17582 is available in a 6mm x 6mm, 48-pin TQFN package.
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