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DA9230

Nanopower buck regulator for low power connected devices

da9230.jpg

Most configurable buck for the most efficient solution

The DA9230 is an ultra-low quiescent current, high-efficiency buck regulator in a compact I2C configurable WLCSP package targeting battery powered applications needing highly efficient power supplies.  The battery life of these devices is significantly improved due to the low quiescent current delivered by DA9230 during operation and shutdown.

The buck regulator extends high light load efficiency down to 10 µA further extending battery life. Dynamic Voltage Control in the Buck regulator facilitates optimization across the system power modes enabling further improvement in system efficiency and battery life. The DA9230 provides multiple protection features and comes with the ability to monitor the events and indicators in the GPO pin.

Features

300 mA buck converter

  • 750 nA total input current (buck enabled no load)
  • Up to 81% efficiency at 1.8 V output, 10 µA load currents
  • Input voltage 2.5 V to 5.5 V
  • Output voltage 0.6 V to 1.9 V
  • Dynamic Voltage Control (DVC)

I2C interface for device configuration and control 

Protection features and System Monitors 

Benefits

Longer battery life

Design flexibility through configurability

Small solution size

Future proofing for new technology MCUs with 0.6 V min buck output voltage

Future proofing for new technology batteries with 2.5 V min input voltage

Applications

Wearables – wrist wear, hearables, pet wearables

Smart devices - thermostats and door locks

Smoke detectors

Portable medical devices 

Remote sensors

High efficiency, low power applications

Package

12-pin WLCSP (1.65 x 1.25 mm)

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Product Briefs and Summaries
Name Date Version
DA9230 Product Brief (562.64 KB)
Datasheets
Name Date Version
DA9230 datasheet (1.79 MB)
Application notes
Name Date Version
Shared IRQ Line Considerations AN-PM-059 (329.06 KB) 24/06/2016 1.2
Software Resources
Name Date Version
DA923x GUI (78.22 MB) (Registered users only) 05/09/2020 17
User guides and manuals
Name Date Version
User Guide for DA9230/31 Evaluation Guide (1.16 MB)
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