1. Products
  2. Power Management
  3. Supercapacitor Chargers
  4. MAX38889


Features and Benefits

  • 2.5V to 5.5V System Output Voltage Range
  • 0.5V to 5.5V Supercapacitor Voltage Range
  • ±1% Threshold Accuracy
  • 2.5% Hysteresis between Backup and Charging
  • 1A to 3A Peak Inductor Current Limit
    • Peak Inductor Current Is Pin-Programmable over 1A to 3A through External Resistor
  • 94% Peak Efficiency, Charging or Discharging Mode
  • 4µA Quiescent Current in Ready State
    • After Supercapacitor Is Charged, Draws only 4µA of Quiescent Current
  • Ready and Backup State Outputs
    • RDY and BKB Flags Provide Real-Time Status to System
  • 3mm x 3mm, 16-Pin TQFN Package

Product Details


  • Aftermarket Automotive Tracking
  • Handheld Industrial Equipment
  • Industrial Sensor and Actuators
  • Portable Devices/Computers with Removable Battery

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

Tools & Simulations

EE-Sim Power® Tools

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.


Product Recommendations

MAX38889 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.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX38889AATE+ Material Declaration Reliability Data 16-LFCSP-3X3X0.75
MAX38889AATE+T Material Declaration Reliability Data 16-LFCSP-3X3X0.75
Wafer Fabrication Data

Sample & Buy

Ordering FAQs

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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Price Table Help


Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

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.