Features and Benefits

  • Over 200mA Available Output Current
  • 1.5V to 5.5V Input Voltage Range
  • BATT Connected to OUT in Shutdown for Backup Power
  • Up to 95% Efficiency
  • 7µA Typical Quiescent Current
  • < 1µA Shutdown Supply Current
  • Internal Synchronous Rectifier
  • 750mA Switch Current Limit
  • Active-Low RST Output (MAX8569B)
  • Adjustable Output Voltage (MAX8569A)
  • Fixed 3.0V or 3.3V Output Voltage (MAX8569B)

Product Details

The MAX8569A/MAX8569B low-quiescent-current boost regulators provide up to 200mA at output voltages up to 5.5V from a 1.5V to 5.5V input source. The built-in synchronous rectifier allows for over 90% efficiency while achieving small size and low cost by eliminating the need for an external Schottky diode.

The MAX8569A provides an adjustable output while the MAX8569B is fixed at 3.0V or 3.3V. The MAX8569B features a power-on reset output (active-low RST) to signal that the output has reached regulation. All devices connect the battery input to the output during shutdown, allowing the input battery to be used as a backup or real-time clock supply when the converter is off.


  • Battery Backup
  • Cordless Phones
  • Digital Cameras
  • Local 3.3V to 5V Supplies
  • Medical Diagnostic Equipment
  • PC Cards
  • PDAs and Smartphones

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Product Recommendations

MAX8569 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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Evaluation Boards

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.