ver: 1.7 oct 31, 2011 tel: 886-3-5788833 http://www.gmt.com.tw 1 G966 global mixed-mode technology 2a low dropout regulator with enable features ? adjustable output low to 0.8v ? input voltage as low as 1.4v and vpp voltage 5v ? 300mv dropout @ 2a, vo 1.2v ? over current and over temperature protection ? enable pin ? low reverse leakage (output to input ) ? power sop-8 (fd) packages with thermal pad ? 2% output voltage ? vo power ok signal ? 2.5v options by setting adj pin below 0.2v and adjustable externally using resistors ? vo pull low resistance when disable applications ? motherboards ? peripheral cards ? network cards ? set top boxes ? notebook computers general description the G966 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at up to 2 amps. it operates with a v in as low as 1.4v and vpp voltage 5v with output voltage programmable as low as 0.8v. the G966 features ultra low dropout, ideal for applications where v out is very close to v in . additionally, the G966 has an enable pin to further reduce power dissipation while shutdown. the G966 provides excellent regulation over variations in line, load and temperature. the G966 provides a power ok signal to indicate if the voltage level of vo reaches 92% of its rating value. the G966 is available in the power sop-8 (fd) pack- age. it is available with 2.5v internally preset outputs that are also adjustable using external resistors. ordering information order number (pb free/green) marking temp. range package G966-25adjf1uf G966-25 -40 c~+85 c sop-8 (fd) note: f1: sop-8 (fd) u : tape & reel e.g. 25 denotes the 2.5v output voltage pin configuration typical application circuit vin vo r1 r2 ven vin vo adj gnd G966 0.8 (r1+r2) vo = r2 volts c1 10 f c2 10 f r2<120k is recommended vpp vpp (5v) vin 8 6 5 1 2 3 4 pok ven vpp sop-8 (fd) G966 7 gnd adj vo nc pok vin 10k c pp 1 f thermal pad vin vo r1 r2 ven vin vo adj gnd G966 0.8 (r1+r2) vo = r2 volts c1 10 f c2 10 f r2<120k is recommended vpp vpp (5v) vin 8 6 5 1 2 3 4 pok ven vpp sop-8 (fd) G966 7 gnd adj vo nc pok vin 10k c pp 1 f thermal pad
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