MAX17021

Dual-Phase, Quick-PWM Controllers for IMVP-6+/IMVP-6.5 CPU Core Power Supplies

Dual-Phase Intel IMVP-6+/6.5 CPU Controllers for Montevina/Calpella Platforms


Please check latest availability status for a specific part variant.

Description

The MAX17021/MAX17082/MAX17482 are 2/1-phase-interleaved Quick-PWM™ step-down VID power-supply controllers 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 between 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 (MAX17082/MAX17482 only). Output undervoltage, overvoltage (MAX17021/MAX17082 only), and thermal protection shut the controller down when any of these faults are detected. A voltage-regulator power-OK (PWRGD) output indicates the output is in regulation. Additionally, the MAX17021/MAX17082/MAX17482 feature true differential current sense and a phase-good (PHASEGD) output that indicates a phase imbalance fault condition.

The MAX17021 supports the IMVP-6+ specification while the MAX17082/MAX17482 support the IMVP-6.5 requirements. The MAX17021/MAX17082/MAX17482 are available in a 5mm x 5mm, 40-pin TQFN package.
MAX17021, MAX17082, MAX17482: Functional Diagram MAX17021, MAX17082, MAX17482: Functional Diagram Enlarge+

Key Features

  • Single-/Dual-Phase, Quick-PWM Controllers
  • MAX17021 IMVP-6+ (Montevina)
  • MAX17082/MAX17482 IMVP-6.5 (Calpella)
  • ±0.5% 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
  • Overvoltage Protection (MAX17021/MAX17082)
  • Soft-Startup and Soft-Shutdown

Applications/Uses

  • Blade Servers
  • IMVP-6+/IMVP-6.5 Core Supply
  • Multiphase CPU Core Supply
  • Notebook/Desktop Computers
  • Voltage-Positioned, Step-Down Converters

See parametric specs for Step-Down Switching Regulators (404)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Switch TypeSynchronous SwitchingOper. Freq.
(kHz)
FeaturesPackage/PinsBudgetary
Price
minmaxminmaxmaxSee Notes
MAX17021 42601.550ExternalYes800
Adjustable Freq.
Current Limit
Dual/Multi-Phase
Fixed Freq./PWM
Output OVP
Output UVP
TQFN/40
$5.59 @1k
MAX17082 
TQFN/40
$3.20 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX17082EVKIT: Evaluation Kit for the MAX17021, MAX17033, MAX17034, and MAX17082
MAX17021EVKIT: Evaluation Kit for the MAX17021
Product Reliability Reports: MAX17021.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
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Temperature:

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