Features
- 2.5V to 5.5V operating range
- 750nA total input current (buck enabled, no load)
- Up to 81% efficiency at 1.8V output, 10μA load currents
- Output voltage 0.6V to 1.9V
- Dynamic voltage control (DVC)
- I2C interface for device configuration and control
- Protection features and system monitors
- Package: WLCSP 12 (1.65mm x 1.25mm x 0.5mm)
Description
The 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 (DVC) in the buck regulator facilitates optimization across the system power modes enabling further improvement in system efficiency and battery life.
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
Parameters
| Attributes | Value |
|---|---|
| Total step-down DC/DC converter channels (#) | 1 |
| Step-up DC/DC converter Channels (#) | 0 |
| Input Voltage (Min) (V) | 2.5 |
| Input Voltage (Max) (V) | 5.5 |
| Bus Voltage (Max) (V) | 5.5 |
| Output Current Max (A) | 0.06 |
| Outputs (#) | 1 |
| Function | 1-ch PMIC |
| Battery Interface | No |
| GPIOs (#) | 1 |
| Integrated Battery Charger | No |
| Switching Frequency (MHz) | 1.5 - 1.5 |
| USB-Power Management | No |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| WLCSP | 1.7 mm x 1.3 mm x 0.5 mm, 12-pin WLCSP | 12 | 0.4 |
Applications
- Fitness trackers
- Smartwatches
- Wireless headphones
- Portable medical
- Personal health monitors
- Portable gaming
- Wireless earbud cradles
- Home automation