ACT8937A

ACT8937A Rev 1, 22-Oct-12 Advanced PMU for Samsung S5PC100, S5PC110 and S5PV210 Processors FEATURES Optimized for Samsung S5PC100, S5PC110 and S5PV210 Processors GENERAL DESCRIPTION The ACT8937A is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Samsung S5PC100, S5PC110 and S5PV210 processors. 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 150mA, 150mA, 250mA, and 250mA, respectively. The ACT8937A is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package. 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 TYPICAL APPLICATION DIAGRAM Innovative PowerTM ActivePM...