Reference Design
Design & Integration File
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Board pictured here has been fully assembled and tested.

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Design & Integration File

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Download Design Files 1.96 M

Description

MAXREFDES1255 is a 4-switch buck-boost converter that gives a positive step-up/stepdown output voltage. It uses MAX20048 IC, a current-mode buck-boost controller, which drives four MOSFETs to generate positive buck-boost output. This reference design can operate from 5V to 36V input and deliver up to 5A of load current at 12V output. This design targets automotive applications.

Features & Benefits

  • High efficiency of 90%
  • Very low line and load regulation < 0.5%
  • Output voltage ripple 1% at nominal VIN
  • Internal soft-start
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