Data Sheet Rev. 0
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Overview

Features and Benefits

  • 3.0V to 4.0V Operating Supply Voltage
  • 3.8V to 5.25V Fixed Output
  • 1A Output Version Populated; Compatible with 500mA and 2A Output Versions
  • 2.2MHz Operation for the MAX20472
  • 2.0MHz Operation for the MAX20472B
  • Feedback Injection Point to Test Stability
  • Robust for the Automotive Environment
    • Current Mode, Forced-PWM and Skip Operation
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Operating Range
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20472 evaluation kit demonstrates the performance of the MAX20472 and MAX20472B, which is part of the MAX2047x series of high-efficiency, low-voltage DC-DC converters. The converter ICs boost a 3.0V to 4.0V input supply to between 3.8V and 5.25V at up to 1A. The boost converters achieve ±1.5% output error over load, line, and temperature range.

The IC features a 2.2MHz (2.0MHz for the MAX20472B) fixed-frequency forced-PWM (FPWM) mode for better noise immunity and load-transient response, and a pulse frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz or 2.0MHz frequency operation enables the use of all-ceramic capacitors and minimizes external components. The programmable spread-spectrum-frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and make the layout a much simpler task with respect to discrete solutions.

The regulator includes True Shutdown™, soft-start, overcurrent, and overtemperature protections.

Applications

  • Automotive CAN Transceivers
  • Automotive Point of Load

Markets and Technologies

Applicable Parts

Documentation & Resources

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  • Data Sheet (1)
  • Evaluation Design File (1)
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