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DA9232

Configurable, high efficiency buck regulator for GPS sub-systems in wearable devices requiring ultra-low voltage ripple

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Nanopower ultra-low ripple buck regulator for low power connected devices

DA9232 is a high efficiency, ultra-low quiescent current and ultra-low output ripple buck regulator in a compact I2C configurable WLCSP package targeting battery powered applications needing low ripple and highly efficient power supplies.

The battery life of these devices is significantly improved due to the low quiescent current delivered by  DA9232 during operation and shutdown. Dynamic Voltage Control in the Buck regulator facilitates optimization across the system power modes enabling further improvement in system efficiency and battery life.

Lifecycle status

● Active

Features

2.5V - 5.5V operating range

750 nA total input current (buck enabled, no load)

Up to 81% efficiency at 1.8 V output, 10 μA load currents

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

<10mV output ripple exceeds requirements for powering GPS chipsets in wearable devices 

Low quiescent current buck regulator extends battery life

Dynamically programmable output voltage optimizes performance in operating modes and extends battery life in storage modes

Applications

Fitness Trackers

Smartwatches

Wireless Headphones

Portable Medical

Personal Health Monitors

Portable Gaming

Wireless Earbud Cradles

Home Automation

Package

WL-CSP 12 (1.65 x 1.25 x 0.5mm)

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Datasheets
Name Date Version
DA9232 Datasheet (1.28 MB) 22/01/2019 2.0
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