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ACT8796 Datasheet(PDF) 1 Page - Active-Semi, Inc |
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ACT8796 Datasheet(HTML) 1 Page - Active-Semi, Inc |
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1 / 34 page  Innovative Power TM - 1 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ActivePMU TM is a trademark of Active-Semi. I 2CTM is a trademark of Philips Electronics. Rev1, 10-Oct-08 Six Channel Integrated Power Management IC for Handheld Portable Equipment ACT8796 Pb-free SYSTEM BLOCK DIAGRAM FEATURES • Multiple Patents Pending • Six Integrated Regulators − 750mA PWM Step-Down DC/DC − 750mA PWM Step-Down DC/DC − 550mA PWM Step-Down DC/DC − 250mA Low Noise LDO − 250mA Low Noise LDO − 250mA Low Noise LDO • I2CTM Compatible Serial Interface − Programmable Output Voltages − Configurable Operating Modes • Minimal External Components • 4x4mm, Thin-QFN (TQFN44-24) Package − Only 0.75mm Height − RoHS Compliant APPLICATIONS • Portable Devices and PDAs • Wireless Handhelds • DMB Enabled Devices • GPS Receivers, etc. GENERAL DESCRIPTION The patent-pending ACT8796 is a complete, cost- effective, highly-efficient ActivePMUTM power man- agement solution that is ideal for a wide range of portable handheld equipment. This device inte- grates three step-down DC/DC converters and three low dropout linear regulators (LDOs) into a single, thin, space-saving package. An I2C Serial Interface provides programmability for the DC/DC converters and LDOs. REG1, REG2 and REG3 are fixed-frequency, cur- rent-mode PWM step-down DC/DC converters that are optimized for high efficiency and are capable of supplying up to 750mA, 750mA and 550mA, re- spectively. REG4, REG5 and REG6 are low noise, high PSRR linear regulators that are capable of supplying up to 250mA each. The ACT8796 is available in a tiny 4mm x 4mm 24- pin Thin-QFN package that is just 0.75mm thin. ACT8796 System Control REG2 Step-Down DC/DC REG1 Step-Down DC/DC REG3 Step-Down DC/DC REG4 LDO REG5 LDO REG6 LDO ON3 SCL SDA Battery nMSTR PWRHLD OUT4 0.645V to 3.7V Up to 250mA OUT2 1.1V to 4.4V Up to 750mA OUT6 1.4V to 3.7V Up to 250mA OUT3 1.1V to 4.4V Up to 550mA OUT1 1.1V to 4.4V Up to 750mA OUT5 1.4V to 3.7V Up to 250mA TM PMU PMU Active nRSTO |
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