g5108
low-noise step-up dc-dcconverter
generaldescription：
the g5108 boost converter incorporatehigh-performance，current-mode, frequency selectablepulsewidth modulation (pwm) circuitrywith a built-in 0.2ωn-channel mosfet to provide a highlyefficientregulator。
high switching frequency allows easyfiltering andfaster loop performance. an externalcompensationpin provides the user flexibility indetermining loop dynamics,allowing the use of small, low esrceramicoutput capacitors. the device canproduce an output
voltage as high as 20v. userprogrammed soft-startwith an external capacitordetermines the input currentramprate。
features：
1、90%efficiency
2、 adjustable output from vin to20v
3、0.2ω, 24v powermosfet
4、cycle-by-cycle 2acurrentlimit
5、 2.5v to 5.5v inputrange
6、 600khz/1.2mhz switchingfrequency
applications：
1、 lcddisplays
2、 portableapplications
3、hand-helddevices
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深圳市科瑞芯电子有限公司销售部
颜昌奇
15012893012
深圳市宝安区龙华梅龙路南源商业大厦1002室