Active-Semi ACT8899
The ACT8899 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Freescale i.MX53 processor. This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators. The three DC/DC converters utilize a highefficiency, fixed-frequency (2MHz), current-mode PWM control architecture that requires a minimum number of external components.| Part No. | ACT8899 |
|---|---|
| Datasheet | ACT8899 Download |
| Manufacturer |  Active-Semi |
| Description | Advanced PMU |
| Buy | Stock & Price |
FEATURES
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● Optimized for Freescale i.MX53 Processor Three Step-Down DC/DC Converters Four Low-Dropout Linear Regulators I2CTM Serial Interface Advanced Enable/Disable Sequencing Controller Minimal External Components Tiny 4×4mm TQFN44-32 Package − 0.75mm Package Height − Pb-Free and RoHS Compliant
GENERAL DESCRIPTION
Two DC/DCs are capable of supplying up to 1150mA of output current, while the third supports up to 1300mA. All four low-dropout linear regulators are highperformance, low-noise, regulators that support up to 320mA. The ACT8899 is available in a compact, Pb-Free and RoHS-compliant TQFN44-32 package. SYSTEM BLOCK DIAGRAM Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of NXP. -1- Copyright © 2011 Active-Semi, Inc. Free Datasheet ® Product Brief, 05-Dec-11 ACT8899 PRODUCT OPTIONS Block REG1 REG2 REG3 REG4 REG5 REG6 REG7 Function Step-Down DC/DC Step-Down DC/DC Step-Down DC/DC LDO LDO LDO LDO Output Voltage 0.6V to 3.9V 0.6V to 3.