システムボード 6938

MAXREFDES1204: Single-Output SEPIC Converter Using MAX16990


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The MAXREFDES1204 is a single-output SEPIC converter reference design developed using the MAX16990 controller. This reference design is rated to operate over a wide input voltage range from 6V to 18V. The design can deliver an output power of 24W at 12V. It is targeted for automotive applications.

Key Features

  • Very High Efficiency > 90% for Load > 25%
  • Very Low Line and Load Regulation < 0.02%
  • Output Voltage Ripple < 0.7% at Nominal VIN
  • Overshoot < 2.6% for 50% Step Load
  • Continuous Conduction Mode (CCM) Operation
  • Internal Soft-Start
MAXREFDES1204 Board 拡大表示+


This board is not available for purchase.

Designed, Built, Tested

This document describes the hardware shown above. It provides a detailed, systematic technical guide to designing a SEPIC converter using Maxim’s MAX16990 current-mode controller. The power supply uses uncoupled inductors and has been built and tested, details of which follow later in this document.

Design Resources

 
Status:
Package:
Temperature:

MAX16990
36V、2.5MHz車載ブースト/SEPICコントローラ

  • AMラジオ帯より高い2.5MHzのスイッチング周波数によってラジオへの干渉を最小化
  • 外付け部品数を最小限に抑えるスペース効率に優れたソリューションデザイン
  • スペクトラム拡散によってEMI対策の設計を簡素化