DA9073

Highly integrated PMIC for wearables and home automation extends battery life in the smallest footprint

DA9073 is a highly integrated, configurable, low quiescent current PMIC that integrates the most common needs for wearables, home automation and low power battery applications. The Power Management IC (PMIC) comprises a linear charger with Power Path management, ultralow quiescent current (Iq) buck regulator and LDO/Load Switches, wide output voltage boost regulator, watchdog and protection features in an I²C configurable compact WLCSP package. DA9073 has several power saving modes to increase battery life whether the product sits on the shelf or is in operation. Further savings in power are achieved with the ultra-low Iq buck converter that is efficient down to 10 μA load currents and low Iq LDOs. The uncommitted inputs of LDOs can be connected to either the battery or buck output. The integrated, high-efficiency boost regulator supports both sensors and display supply needs with a wide range configurable output voltage.

DA9073 provides charge current up to 500 mA to speed up the charge cycle. The charge profile is programmable by external resistors or in software, allowing either stand-alone operation or host control.

DA9073 includes dynamic power path management which automatically balances current delivered between the system and the battery.

2.5V - 5.5V operating range

22V tolerant, 500mA linear battery charger with Power Path

Battery protection during charging & discharging

300mA buck converter with 900nA quiescent current

3x 150mA LDO/Load Switches with 800nA quiescent current

Boost regulator with 4.5V - 18V output range

Current & voltage monitors for battery fuel gauge (DA9070 only)

Dedicated watchdog & reset inputs

I²C Interface

Flexible charger supports slow and fast charging rates

Low quiescent current buck regulator and LDOs extend battery life

Integrated PMIC reduces power management footprint by 25% compared to discrete solutions

Programmable power states optimize performance in operating modes and extend battery life in storage modes

Fitness Trackers

Smartwatches

Wireless Headphones

Portable Medical

Personal Health Monitors

Portable Gaming

Wireless Earbud Cradles

Home Automation

WL-CSP 42 (2.97mm x 2.66mm)

Wearables Application Page