innovative power tm - 1 - www.active-semi.com copyright ? 2010 active-semi, inc. activepmu tm is trademark of active-semi. i 2 c tm is a trademark of nxp. product brief, 29-nov-10 ACT8894 advanced pmu for sams ung s3c2416/s3c2450 features ? optimized for samsung s3c2416/s3c2450 processors ? three step-down dc/dc converters ? four low-dropout linear regulators ? i 2 c tm serial interface ? advanced enable/disable sequencing controller ? minimal external components ? tiny 55mm tqfn55-32 package ? 0.75mm package height ? pb-free and rohs compliant applications ? personal navigation devices ? portable media players ? tablet devices ? smart phones ? mids general description the ACT8894 is a complete, cost effective, highly- efficient activepmu tm power management solution, optimized for the unique power, voltage- sequencing, and control requirements of the samsung s3c2416/s3c2450 processors. this device features three step-down dc/dc converters and four low-noise, low-dropout linear regulators. the three dc/dc converters utilize a high- efficiency, 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 900ma of output current, while the third supports up to 700ma. all four low- dropout linear regulators are high-performance, low-noise, regulators that supply up to 150ma, 150ma, 250ma, and 250ma, respectively. the ACT8894 is available in a compact, pb-free and rohs-compliant tqfn55-32 package. typical application diagram ? free datasheet http:///
ACT8894 product brief, 29-nov-10 ? innovative power tm - 2 - www.active-semi.com copyright ? 2010 active-semi, inc. reg6 ldo reg7 ldo ACT8894 sda vp2 gp2 sw2 out2 out2 vp1 gp1 sw1 out1 out1 to battery out7 out6 reg5 ldo out5 out7 out6 out5 system control nirq reg4 ldo out4 out4 inl45 refbp reference vp3 gp3 sw3 out3 out3 ga ep to battery to battery to battery npbstat pwrhld pwren scl vsel out1 out1 npbin push button vp2 serial interface nrsto out1 inl67 to battery to battery vddref product options block function output voltage capability reg1 step-down dc/dc adjustable, or 0.6v to 3.9v 900ma reg2 step-down dc/dc 700ma reg3 step-down dc/dc 900ma reg4 ldo 0.6v to 3.9v 150ma reg5 ldo 150ma reg6 ldo 250ma reg7 ldo 250ma functional block diagram free datasheet http:///
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