MAX17410
Dual-Phase, Quick-PWM Controller for IMVP6+ CPU Core Power Supplies
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Dual-Phase Intel IMVP6+ CPU Controllers for Montevina Platform
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Features
- Dual-/Single-Phase Interleaved Quick-PWM Controller
- ±0.5% VOUT Accuracy Over Line, Load, and Temperature
- 7-Bit IMVP6+ DAC
- Dynamic Phase Selection Optimizes Active/Sleep Efficiency
- Transient Phase Overlap Reduces Output Capacitance
- Active Voltage Positioning with Adjustable Gain
- Accurate Lossless Current Balance
- Accurate Droop and Current Limit
- Remote Output and Ground Sense
- Adjustable Output Slew-Rate Control
- Power-Good Window Comparator
- Power Monitor
- Programmable Thermal-Fault Protection
- Phase Fault Output (PHASEGD)
- Drives Large Synchronous Rectifier FETs
- 4.5V to 26V Battery Input Range
- Output Overvoltage and Undervoltage Protection
- Soft-Startup and Soft-Shutdown
- Integrated Boost Switches
- Low-Profile 7mm x 7mm, 48-Pin TQFN Package
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The MAX17410 is a 2-/1-phase interleaved Quick-PWM™ step-down VID power-supply controller for notebook IMVP6+ 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 scheme 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.
The MAX17410 is intended for two different CPU core applications: either bucking down the battery directly to create the core voltage, or bucking down the +5V system supply. The single-stage conversion method allows this device to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, 2-stage conversion (stepping down the +5V system supply instead of the battery) at higher switching frequency provides the minimum possible physical size.
A slew-rate controller allows controlled transitions between VID codes. A thermistor-based temperature sensor provides programmable thermal protection. A power monitor provides a buffered analog voltage output proportional to the power delivered to the load.
The MAX17410 is available in a 48-pin, 7mm x 7mm TQFN package.
Applications
- IMVP6+ Core Supply
- Multiphase CPU Core Supply
- Notebook/Desktop Computers
- Voltage-Positioned, Step-Down Converters
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MAX17410
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Software & Part Ecosystem
Evaluation Kits 1
MAX17410EVKIT
Evaluation Kit for the MAX17410
Features and Benefits
- Dual-Phase, Fast-Response Interleaved, Quick-PWM
- Intel IMVP-6+ Code-Set Compliant
- Dynamic Phase Selection Optimizes Active/Sleep Efficiency
- Transient Phase Overlap Reduces Output Capacitance
- Transient-Overshoot Suppression Feature
- Active Voltage Positioning with Adjustable Gain
- High Speed, Accuracy, and Efficiency
- Low Bulk Output Capacitor Count
- 7V to 24V Input-Voltage Range
- 0 to 1.5000V Output-Voltage Range (7-Bit DAC)
- 38A Load-Current Capability (19A per Phase)
- Accurate Current Balance and Current Limit
- 300kHz Switching Frequency (per Phase)
- Power-Good (PWRGD) and Phase-Good (PHASEGD) Outputs and Indicators
- Clock Enable (Active-Low CLKEN) and Thermal-Fault (Active-Low VRHOT) Outputs and Indicators
- Lead(Pb)-Free and RoHS Compliant
- Fully Assembled and Tested
Product Detail
The MAX17410 evaluation kit (EV kit) demonstrates the high-power, dynamically adjustable, multiphase IMVP-6+ notebook CPU application circuit. This DC-DC converter steps down high-voltage batteries and/or AC adapters, generating a precision, low-voltage CPU core VCC rail. The MAX17410 EV kit meets the Intel mobile IMVP-6+ CPU's transient voltage specification, powergood signaling, voltage regulator thermal monitoring (active-low VRHOT), and power monitor output (PMON). The MAX17410 EV kit consists of the MAX17410 2-phase interleaved Quick-PWM™ step-down controller. The MAX17410 EV kit includes active voltage positioning with adjustable gain, reducing power dissipation, and bulk output capacitance requirements. A slew-rate controller allows controlled transitions between VID codes, controlled soft-start and shutdown, and controlled exit suspend voltage. Precision slew-rate control provides "just-in-time" arrival at the new DAC setting, minimizing surge currents to and from the battery.
Dedicated system inputs (active-low PSI, active-low DPRSTP, and DPRSLPVR) dynamically select the operating mode and number of active phases, optimizing the overall efficiency during the CPU's active and sleep states.
The MAX17410 includes latched output undervoltage-fault, overvoltage-fault, and thermal-overload protection. It also includes a voltage regulator power-good output (PWRGD), a clock enable output (active-low CLKEN), a power monitor output (PMON), a phase-good output (PHASEGD), and a system power-good input (PGDN).
This fully assembled and tested circuit board provides a digitally adjustable 0 to 1.5000V output voltage (7-bit on-board DAC) from a 7V to 24V battery input range. Each phase delivers up to 19A output current for a total of 38A. The MAX17410 EV kit operates at 300kHz switching frequency (per phase) and has superior line- and load-transient response.
Applications
- IMVP6+ Core Supply
- Multiphase CPU Core Supply
- Notebook/Desktop Computers
- Voltage-Positioned, Step-Down Converters