0.8a adjustable/fixed low dropout linear regulator - low dropout voltage - load regulation: 0.2% typical - optimized for low voltage - on-chip thermal limiting - standard sot-89 packages - three-terminal adjustable or fixed low dropout 1.2v,1.5v,1.8v, 1.9v, 2.5v, 3.3v, 5v. regulators - high efficiency linear regulators - post regulators for switching supplies - battery chargers - 12v to 5v linear regulators - motherboard clock supplies the ams1117-adj and ams1117-1.2,-1.5,-1.8,-1.9,-2.5 -3.3 and-5.0 are low dropout three-terminal regulators with 0.8a output current capability.these devices have been optimized for low voltage where transient response and minimum input voltage are critical. on-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. the ams1117 series regulators are available in the indus- try-standard sot-89 packages. key features applications general description typical application n o ti c e: t h e d i stan c e bet w e e n v out p in a n d ca p ac i t o r s h ould not ex c e e d 4cm for exce l lent perfor m anc e typ i cal a p p li c a t i on s o f ams 11 1 7
1 absolute m axim um ratings t a = 25 param eter sym bol rating unit ma x im um input volt age v i n 18 v pow er dissi pation p d internally lim ited opera ting j unction tem pera ture rang e t j 150 storage tem pera ture t st -65 to +150 block diagram 3 thermal shutdown 1 2 vout adj 1.25v + + current limit vin + + 1 gnd (fixed) 1.base 2.collector 3.emitter unit:mm s o t - 8 9 4.500.1 1.800.1 2.500.1 4.000.1 0.480.1 0.530.1 0.800.1 1.50 0.1 0.440.1 3.000.1 0.400.1 2.600.1 1 2 3 1 adj(gnd) 2 vout 3 vin
ele ctrical characteris tics t a = 2 5 testc onditons min typ ma x unit refere nce volt age vref ams1117-adj 10maiout800ma, 1.5vvin-vout12v 1.2251.2501.275v ams1117-1.2 0iout800ma,2.6vvin-vout12v 1.1751.2001.225v ams1117-1.5 0iout800ma, 2.9vvin-vout12v 1.4701.5001.530v ams1117-1.8 0iout800ma, 3.2vvin-vout12v 1.7641.8001.836v ams1117-1.9 0iout800ma,3.3vvin-vout12v 1.8621.9001.938v ams1117-2.5 0iout800ma, 3.9vvin-vout12v 2.4502.5002.550v ams1117-3.3 0iout800ma, 4.75vvin-vout12v 3.2343.3003.366v ams1117-5.0 0iout800ma, 6.5vvin-vout12v 4.9005.0005.100v ams1117-adj iout=10ma,1.5vvin-vout13.775v 0.0350.2% ams1117-1.2 iout=10ma,2.6vvin-vout12v 912 mv ams1117-1.5 iout=10ma, 2.9vvin-vout12v 912 mv ams1117-1.8 iout=10ma, 3.2vvin-vout12v 912 mv ams1117-1.9 iout=10ma,3.3vvin-vout12v 912 mv ams1117-2.5 iout=10ma, 3.9vvin-vout12v 912 mv ams1117-3.3 iout=10ma, 4.75vvin-vout12v 912 mv ams1117-5.0 iout=10ma, 6.5vvin-vout12v 912 mv ams1117-adj vin-vout=3v,10maiout800ma 0.20.4% ams1117-1.2 vin=2.6v,0iout800ma 310 mv ams1117-1.5 vin=2.9v,0iout800ma 310 mv ams1117-1.8 vin=3.2v,0iout800ma 310 mv ams1117-1.9 vin=3.3v,0iout800ma 310 mv ams1117-2.5 vin=3.9v,0iout800ma 310 mv ams1117-3.3 vin=4.75v,0iout800ma 310 mv ams1117-5.0 vin=6.5v,0iout800ma 310 mv vout, vref=1%,i out=100 m a 1.11 1.2 v vout, vref=1%,i out=500 m a 1.18 1.25 v vout, vref=1%,i out=800 m a 1.26 1.3 v cur rent lim it ams1117-xxx vin-vout = 5v,tj=25 1.251.41.6a min im um load cur rent ams1117-xxx ams1117-adj 510ma ams1117-1.2 vin-vout=1.25v48ma ams1117-1.5 vin-vout=1.25v48ma ams1117-1.8 vin-vout=1.25v48ma ams1117-1.9 vin-vout=1.25v48ma ams1117-2.5 vin-vout=1.25v48ma ams1117-3.3 vin-vout=1.25v48ma ams1117-5.0 vin-vout=1.25v48ma adjust pin curre nt (adjutable version) iadj 55 120 a adjust pin curre nt chan ge ichange 0.2 a parameter load regulation output voltage vout line reg ulation vout vout vin-vout ams1117-xxx i li m it quiescent c urre nt iq dro pout voltage
typical charac teristics fig.1 dropout voltage vs output current fig.2 load regulation vs temperature fig.3 percent change in out put voltage vs t emperature fig.4 line regulation fig.5 line transient response fig.6 load transient response
mar k ing o r der ing inf or m ation devi ece p acka ging shipping 1000 / tape&reel ams1117-x.x mark ing 1117-x.x s o t - 8 9
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