Active-Semi ACT8941A
The ACT8941A is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Rockchip RK2906/RK2918 processor. It is ideal for a wide range of high performance portable handheld applications such as tablet or pad devices. This device integrates the ActivePathTM complete battery charging and management system with seven power supply channels.| Part No. | ACT8941A |
|---|---|
| Datasheet | ACT8941A Download |
| Manufacturer |  Active-Semi |
| Description | Advanced PMU |
| Buy | Stock & Price |
FEATURES
● Three Step-Down DC/DC Converters● Four Low-Dropout Linear Regulators
● Integrated ActivePathTM Charger
● I2CTM Serial Interface
● Advanced Enable/Disable Sequencing Controller
● Minimal External Components
● Tiny 5×5mm TQFN55-40 Package − 0.75mm Package Height − Pb-Free and RoHS Compliant
GENERAL DESCRIPTION
This device 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 ActivePathTM system-power selection function. The three DC/DC converters utilize a highefficiency, 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 highperformance, low-noise regulators that supply up to 320mA of output current. The ACT8941A is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package.
