ver: 1.9 jul 06, 2011 tel: 886-3-5788833 http://www.gmt.com.tw 1 g5910 global mixed-mode technology inc. high-efficiency white led charge pump features input range 2.7v to 5v quiescent current: 90 a regulated 5v 4% output 5v output current 90ma with v in R RR R 3.0v 40ma with v in R RR R 2.7v high frequency 1mhz operation shutdown mode draws less than 1 a shot-circuit/over-temperature protection tdfn2x2-6, sot-23-6 and tsot-23-6 package applications portable communication devices cellular phones pda handheld electronics digital cameras led/display back light driver led for camera flash general description the g5910 charge-pump is a switched-capacitor voltage converter that delivers a regulated output. the external inductor is not required for operation. usi ng small capacitors, the g5910 can deliver up to 90ma (@v in =3v) to the voltage-regulated output. the g5910 features high efficiency over a large portion of it s load range making this device ideal for battery-powered applications. the combination of few external compo- nents and small package size keeps the total con- verter board area to a minimum in space-restricted applications. the g5910 contains a thermal manage- ment circuit to protect the device under continuous output short circuit conditions. the g5910 is available in a surface mount tdfn2x2-6, sot-23-6 and tsot-23-6 package. ordering information order number marking voltage temp. range package (green) g5910-45rbu 591a 4.5v -40 c to 85 c tdfn2x2-6 g5910-50rbu 591b 5.0v -40 c to 85 c tdfn2x2-6 g5910-45tbu 5911x 4.5v -40 c to 85 c sot-23-6 g5910-50tbu 5910x 5.0v -40 c to 85 c sot-23-6 g5910-45tpu 5911x 4.5v -40 c to 85 c tsot-23-6 g5910-50tpu 5910x 5.0v -40 c to 85 c tsot-23-6 note: rb: tdfn2x2-6 tb: sot-23-6 tp: tsot-23-6 u: tape & reel pin configuration tdfn2x2-6 1 23 6 5 4 thermal pad g5910 gnd shdn vout c+ vin c- c+ c- vin gnd shdn vout 12 3 4 5 6 g5910 sot-23-6/tsot-23-6 tdfn2x2-6 1 23 6 5 4 thermal pad g5910 gnd shdn vout c+ vin c- c+ c- vin gnd shdn vout 12 3 4 5 6 g5910 sot-23-6/tsot-23-6
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