MAXREFDES1166 Reference Design

Analog Devices Inc.

MAXREFDES1166

Description

±7V/100mA or ±5V/50mA, Iso-Buck DC-DC Converter Using the MAX17681A

The MAX17681/MAX17681A is a high-voltage, highefficiency, iso-buck DC-DC converter designed to provide isolated power up to 5W. The device operates over a wide 4.5V to 42V input and uses primary-side feedback to regulate the output voltage.

Features
  • No Optocoupler
  • Synchronous Primary Operation
  • All-Ceramic Capacitors, Compact Layout
  • Wide 4.5V to 42V Input
  • 0.9V to 0.96 x VIN Primary Output Voltage
  • Delivers Up to 5W Output Power
  • Peak Efficiency > 90%
  • 0.9μA (typ) Shutdown Current
  • Peak and Sink Current-Limit Protection
  • Robust Secondary-Side Output Overcurrent Protection (MAX17681A)
  • ±1.7% Feedback Accuracy
  • Programmable EN/UVLO Threshold
  • Adjustable Soft-Start
  • Overtemperature Protection
  • -40°C to +125°C Operation
Applications
Product Categories

Design File

3.29M Zip File Includes: Schematic, PCB Layout, Bill of Materials, Test Results, SIMPLIS Schematic File

Download the design file for MAXREFDES1166

Other Documents

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Overview of Reference Design