Data Sheet Rev. 1
CN 1 View All

Overview

Features and Benefits

  • 10.8V to 13.2V Supply Voltage Range with 4.5V to 5.5V VCC Supply Voltage Range
  • 1.2% Accurate Over Temperature
  • Adjustable Output Voltage Down to 0.6V
  • 300kHz and 500kHz Switching Frequency
  • Lossless Peak Current Sensing
  • Monotonic Startup into Prebias Output (MAX8576/MAX8578)
  • Startup Overvoltage Protection (MAX8577/MAX8579)
  • Enable/Shutdown
  • Fully Assembled and Tested

Product Details

The MAX8576 evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX8576 and MAX8578 hysteretic, synchronous step-down DC-DC converters. The MAX8576 circuit generates a 1.8V output voltage at load currents up to 12A from a 10.8V to 13.2V input voltage range. The MAX8578 circuit uses an all-ceramic capacitor solution to generate a 1.8V output voltage at load currents up to 5A from a 10.8V to 13.2V input voltage with VCC supply from an additional 4.5V to 5.5V supply. The MAX8576 circuit switches at approximately 300kHz, and the MAX8578 circuit switches at approximately 500kHz. Both devices have up to 93% efficiency with the supplied components. The MAX8576 EV kit also evaluates the MAX8577 and MAX8579. To evaluate the MAX8577 or MAX8579, order a free sample along with this EV kit.

Applications

  • AGP and PCI Express® Power Supplies
  • Graphic-Card Power Supplies
  • Motherboard Power Supplies
  • Point-of-Load Power Supplies
  • Set-Top Boxes

Documentation & Resources

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