ver: 1.4 apr 11, 2011 tel: 886-3-5788833 http://www.gmt.com.tw 1 G962 global mixed-mode technology inc. 2a low dropout regulator with enable features ? adjustable output from 1.2v to 4.8v using ex- ternal resistors ? 1.5v, 1.8v and 2.5v options by setting adj pin below 0.2v ? fixed 2.5v, 3.3v and 5v output for to-252 ? over current and over temperature protection ? 500mv dropout @2a ? enable pin ? 10 a quiescent current in shutdown ? output recovery mode in otp ? connect adj to gnd for fixed output mode ? to-252 and to-252-5 package applications ? battery powered systems ? motherboards ? peripheral cards ? set top boxes ? notebook computers general description the G962 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 2 amps. since it has superior dropout characteristics compared to regular ldos, it can be used to supply 2.5v on motherboards or 1.5v, 1.8v on peripheral cards from the 3.3v supply thus allowing the elimination of costly heatsinks. an enable pin further reduces power dissipation while shut down. the G962 provides excellent regulation over variations in line, load and temperature. the G962 is available with 1.5v, 1.8v, 2.5v, 3.3v and 5v internally preset outputs. ordering information order number (pb free/green) marking temp. range package G962-25t45uf G962-25 -40 c ~ +85 c to-252 G962-33t45uf G962-33 -40 c ~ +85 c to-252 G962-50t45uf G962-50 -40 c ~ +85 c to-252 G962-25t45d G962-25 -40 c ~ +85 c to-252 G962-33t45d G962-33 -40 c ~ +85 c to-252 G962-50t45d G962-50 -40 c ~ +85 c to-252 G962-15adjtjuf G962-15 -40 c ~ +85 c to-252-5 G962-18adjtjuf G962-18 -40 c ~ +85 c to-252-5 G962-25adjtjuf G962-25 -40 c ~ +85 c to-252-5 note: t4: to-252 tj:to-252-5 u & d : tape & reel e.g. 18 denotes the 1.8v output voltage. pin configuration typical application circuit ven vin vo c1 4.7 f c2 10 f r1 r2 ven vin vo adj gnd G962 1.2 (r1+r2) vo = r2 volts to-252-5 top view 1 3 2 45 ven vin gnd vo adj r2=12k is recommended r3 i enh r3 should be connected for current i enh restriction as v en > v in +0.3v to-252 top view 1 2 3 vin gnd vo G962-xxt45 ven vin vo c1 4.7 f c2 10 f r1 r2 ven vin vo adj gnd G962 1.2 (r1+r2) vo = r2 volts to-252-5 top view 1 3 2 45 ven vin gnd vo adj r2=12k is recommended r3 i enh r3 should be connected for current i enh restriction as v en > v in +0.3v to-252 top view 1 2 3 vin gnd vo G962-xxt45
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