ACT8798 Product Brief, 31-Jan-08 Advanced Information―All Information Subject to Change Six Channel Integrated Power Management IC for Handheld Portable Equipment FEATURES GENERAL DESCRIPTION • Multiple Patents Pending • Six Integrated Regulators The patent-pending ACT8798 is a complete, costeffective, highly-efficient ActivePMUTM power management solution that is ideal for a wide range of portable handheld equipment. This device integrates 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. − 1.2A PWM Step-Down DC/DC − 1.2A PWM Step-Down DC/DC − 750mA PWM Step-Down DC/DC − 250mA Low Noise LDO − 250mA Low Noise LDO − 250mA Low Noise LDO • I2CTM Compatible Serial Interface REG1, REG2 and REG3 are fixed-frequency, current-mode PWM step-down DC/DC converters that are optimized for high efficiency and are capable of supplying up to 1.2A, 1.2A and 750mA, respectively. REG4, REG5 and REG6 are low noise, high PSRR linear regulators that are capable of supplying up to 250mA each. − Programmable Output Voltages − Configurable Operating Modes • Minimal External Components • 4x4mm, Thin-QFN (TQFN44-24) Package − Only 0.75mm Height − RoHS Compliant The ACT8798 is available in a tiny 4mm x 4mm 24-pin Thin-QFN package that is just 0.75mm thin. APPLICATIONS • Portable Devices and PDAs • Wireless Handhelds • DMB Enabled Devices • GPS Receivers, etc. SYSTEM BLOCK DIAGRAM REG2 Battery Step-Down DC/DC nMSTR nRSTO PWRHLD ON3 REG3 System Control Step-Down DC/DC SCL REG4 SDA OUT1 1.1V to 4.4V Up to 1.2A LDO REG1 REG5 Step-Down DC/DC LDO REG6 ACT8798 PMU LDO TM Active Innovative Products. Active Solutions. -1- OUT2 1.1V to 4.4V Up to 1.2A OUT3 1.1V to 4.4V Up to 750mA OUT4 0.645V to 3.7V Up to 250mA OUT5 1.4V to 3.7V Up to 250mA OUT6 1.4V to 3.7V Up to 250mA www.active-semi.com TM ActivePMU is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. Copyright © 2008 Active-Semi, Inc. ACT8798 Product Brief, 31-Jan-08 PRODUCT OPTIONS Block Function Output Voltage REG1 Step-Down DC/DC REG2 Step-Down DC/DC REG3 Step-Down DC/DC REG4 LDO REG5 LDO REG6 LDO Capability 1.2A 1.1V to 4.4V 1.2A 750mA 0.645V to 3.7V 250mA 250mA 1.4V to 3.7V 250mA : Output voltage options detailed in this table represent standard voltage options, and are available for samples or production orders. Contact Active-Semi for more information regarding semi-custom output voltage combinations. : Contact factory for additional available products or custom requirements. FUNCTIONAL BLOCK DIAGRAM VP1 To Battery ACT8798 REG1 SCL Serial Interface SDA SW1 OUT1 OUT1 GP12 INL VP2 To Battery nMSTR SW2 REG2 PUSH BUTTON OUT2 OUT2 GP12 OUT2 VP3 nRSTO SW3 REG3 PWRHLD OUT3 OUT3 System Control GP3 ON3 INL LDO REG4 REFBP Reference LDO REG5 GA LDO REG6 Innovative Products. Active Solutions. -2- To Battery To Battery OUT4 OUT4 OUT5 OUT5 OUT6 OUT6 www.active-semi.com Copyright © 2008 Active-Semi, Inc.