DA9232
Configurable, high efficiency buck regulator for GPS sub-systems in wearable devices requiring ultra-low voltage ripple
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.
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
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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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