- Three Step-Down DC/DC Converters
- Four Low-Dropout Linear Regulators
- Integrated ActivePath™ Charger
- I2C™ Serial Interface
- Advanced Enable/Disable Sequencing
- Minimal External Components
- Tiny 5x5mm
- TQFN55-40 Package
- 0.75mm Package Height
- Pb-Free and RoHS Compliant
The ACT8931A is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltage sequencing, and control requirements of the Rockchip RK2928/RK2926 processors.
The ACT8931A features three step-down DC/DC converters and four low-noise, low-dropout linear regulators, along with a complete battery charging solution featuring the advanced ActivePathTMsystem-power selection function. The three DC/DC converters utilize a high efficiency, fixed-frequency (2MHz), current-mode PWM control architecture that requires a minimum number of external components. Two DC/DCs are capable of supplying up to 1100mA of output current, while the third supports up to 1200mA. All four low-dropout linear regulators are high performance, low-noise regulators that supply up to 320mA of output current.
The ACT8931A is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package.
Advantages of our Modular Power PMU
|Space Saving||With fully integrated power stages with high switching frequency
of 2.25MHz (1.125Mhz) to reduce external component size
|Integrated sequencing||Easy system level design with programmable Reset and Power
Good functions allows for flexible sequencing options
|Seamless sequencing||With external supplies via integrated GPIOs and Power Good signals|
|Highly configurable||Via a I2C uP interface for status reporting and controlling|
- Other PMU
- Pad Devices