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MAX1544EVKIT

Evaluation Kit for the MAX1544, MAX1545

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX1544, MAX1545 Aug 29, 2003

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Key Features

  • Quad-Phase Quick-PWM EV Kit
  • Mobile and Desktop P4 or AMD Hammer Compatible
  • Active Voltage Positioning with Adjustable Gain, Offset and Remote Sensing
  • High Speed, Accuracy and Efficiency
  • Low Bulk Output Capacitor Count
  • Multiphase Fast-Response Quick-PWM Architecture
    • MAX1544/MAX1545 Dual-Phase Controller
    • Two MAX1980 Slave Controllers
  • 7V to 24V Input Voltage Range
  • 5-Bit On-Board DAC
    • Mobile P4: 0.60V to 1.75V Output Range
    • Desktop P4: 1.10V to 1.85V Output Range
    • AMD Hammer: 0.675V to 1.55V Output Range
  • 68A Load-Current Capability (17A Each Phase)
  • 300kHz Switching Frequency
  • MAX6509 Temperature Sensor
  • 40-Pin Thin QFN Package (MAX1544/MAX1545)
  • 20-Pin Thin QFN Package (MAX1980)
  • Fully Assembled and Tested

Applications/Uses

  • AMD Hammer Desktop or Notebook PCs
  • Multiphase CPU Core Supplies
  • Servers/Desktop Computers
  • Voltage-Positioned Step-Down Converters

Description

The MAX1544/MAX1545 evaluation kits (EV kits) demonstrate the high-power, dynamically adjustable multiphase 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 MAX1544 EV kit meets the mobile and desktop AMD Hammer™ CPU transient voltage specification. The MAX1545 EV kit meets the desktop and mobile Pentium® 4 (P4) CPUs transient voltage specification. The MAX1544/MAX1545 kits consist of the MAX1544 or MAX1545 Dual-Phase Quick-PWM™ stepdown controller, two MAX1980 slave controllers and the MAX6590 temperature sensor. The MAX1544/MAX1545 kits include active voltage positioning with adjustable gain and offset, reducing power dissipation and bulk output capacitance requirements. The kit features independent four-level logic inputs for setting the suspend voltage (S0/S1).

The MAX1980 provides additional gate drive circuitry, phase synchronization, current limit, and current balancing. Precision slew-rate control provides "just-in time" arrival at the new DAC setting, minimizing surge currents to and from the battery.

This fully assembled and tested circuit board provides a 5- bit digitally adjustable output voltage from a 7V to 24V battery input range. The EV kit operates at 300kHz switching frequency and has superior line- and load transient response.

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX1544, MAX1545 Aug 29, 2003

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 .