ver 0.2 dec 20, 2007 tel: 886-3-5788833 http://www.gmt.com.tw 1 G5241 global mixed-mode technology inc. high-side power distribution switch features ? 120m high-side mosfet ? 2a of current limits with foldback ? operating range:2.7v to 5.5v ? 150 s typical rise time ? under voltage lockout ? 65 a quiescent supply current ? 1 a maximum standby supply current ? active-high enable pin ? shutdown pull low function at out pin ? no reverse current when power off ? sot-23-5 package ? applications ? high-side power protection switch ? usb power management ? usb host and self-powered bubs ? usb bus-powered hubs ? hot plug-in power supplies ? battery-charger circuits general description the G5241 is an integrated 120m power switch for self-powered and bus-powered universal serial bus (usb) applications. several protection features include current limiting with foldback, and thermal shutdown to prevent catas- trophic switch failure caused by increasing power dis- sipation when continuous heavy loads or short circuit occurs. and a built-in charge pump is used to drive the n-channel mosfet that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. there is shutdown pull-low function at out pin. its low quiescent supply current and small package (sot-23-5) is particularly suitable in battery-powered equipment, like pda, mobile phone. ordering information order number marking temp. range package (pb free) G5241t1u 5241xx -40 c to +85 c sot-23-5 note:t1: sot-23-5 u: tape & reel pin configuration typical application circuit in out sot-23-5 G5241 5 4 1 en 2 3 gnd in G5241 v out v in c out 470 f c in 1 f in en gnd out on off in out sot-23-5 G5241 5 4 1 en 2 3 gnd in G5241 v out v in c out 470 f c in 1 f in en gnd out on off
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