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Dual-Phase, Quick-PWM Controller for IMVP-6.5 CPU Core Power Supplies

Dual-Phase Intel IMVP-6.5 CPU Controller for Montevina Platforms

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Single-/Dual-Phase, Quick-PWM Controller
  • ±8mV VOUT Accuracy Over Line, Load, and Temperature
  • 7-Bit 0 to 1.50V VID Control
  • Dynamic Phase Selection Optimizes Active/Sleep Efficiency
  • Transient Phase Overlap Reduces Output Capacitance
  • Integrated Boost Switches
  • Active Voltage Positioning with Adjustable Gain
  • Programmable 200kHz to 800kHz Switching Frequency
  • Accurate Current Balance and Current Limit
  • Adjustable Slew-Rate Control
  • Power-Good, Clock Enable, and Thermal-Fault Outputs
  • Phase Current Imbalance Fault Output
  • Drives Large Synchronous Rectifier MOSFETs
  • 4V to 26V Battery Input-Voltage Range
  • Undervoltage and Thermal-Fault Protection
  • IMVP-6.5 Power Sequencing and Timing Compliant
  • Soft-Startup and Soft-Shutdown

Applications/Uses

  • Blade Servers
  • IMVP-6.5 Core Power Supply
  • Multiphase CPU Power Supply
  • Notebooks/Desktop Computers
  • Voltage-Positioned Step-Down Converters

Description

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.

Simplified Block Diagram

MAX17582: Functional Diagram MAX17582: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.