technical data 1.0a low dropout positive voltage regulator IL1117-XX features adjustable and fixed of 1.2, 1.25, 1.5, 1.8, 2.5, 2.85, 3.3, 5.0v space saving smd types of sot-223 1.2v drop-out voltage 1.0a output current line regulation typically at 0.2% max current limiting and thermal protection sot-223 to-220 1. a dj/gnd 2. o utput 3. i nput to-252 to-263 general description the il1117 is a series of low dropout voltage regulators which can provide up to 1a of output current. the il1117 is available in seven fixed voltage, 1.2, 1.25, 1.5, 1.8, 2.5, 2.85, 3.3 and 5.0v. additionally it is also available in adjustable version. on chip precis ion trimming adjusts the reference/ output voltage to within 2%. current limit is also trimmed to ensure specified output current and cont rolled short-circuit current. the il1117 series is available in sot-223 packages. a minimum of 10uf tantalum capacitor is required at the output to improve the transient response and stability. applications post regulator for switching dc/dc converter high efficiency linear regulator battery chargers pc add on card motherboard clock supplies lcd monitor set-top box absolute maximum ratings maximum input voltage ~ 15.0v operating junction temperature range -25 ~ 125 storage temperature range -50 ~ 150 1
IL1117-XX electrical characteristics (vin = 5v, co = 10uf, ta = 25 , unless otherwise specified) parameter conditions min typ max unit output voltage il1117-1.2 il1117-1.25 (adjustable) il1117-1.5 il1117-1 . 8 il1117-2 . 5 il1117- 2 . 8 5 il1117- 3 . 3 il1117-5 . 0 tj = -25c to +125c io = 10ma to 1.0a, vin = 2.7 to 12.0v io = 10ma to 1.0a, vin = 2.8 to 12.0v io = 10ma to 1.0a, vin = 3.0 to 12.0v io = 10ma to 1.0a, vin = 3.3 to 12.0v io = 10ma to 1.0a, vin = 4.0 to 12.0v io = 10ma to 1.0a, vin = 4.4 to 12.0v io = 10ma to 1.0a, vin = 4.8 to 12.0v io = 10ma to 1.0a, vin = 6.5 to 15.0v 1.176 1.225 1.470 1.764 2.450 2.790 3.240 4.900 1.200 1.250 1.500 1.800 2.500 2.850 3.300 5.000 1.224 1.280 1.530 1.836 2.550 2.910 3.360 5.100 v line regulation il1117-1.2 il1117-1.25 (adjustable) il1117-1.5 il1117-1.8 il1117-2.5 il1117- 2 . 8 5 il1117- 3 . 3 il1117-5.0 io =10ma to 1.0a, vin = 2.7 to 12.0v io =10ma to 1.0a, vin = 2.8 to 12.0v io =10ma to 1.0a, vin = 3.0 to 12.0v io =10ma to 1.0a, vin = 3.3 to 12.0v io =10ma to 1.0a, vin = 4.0 to 12.0v io =10ma to 1.0a, vin = 4.4 to 12.0v io =10ma to 1.0a, vin = 4.8 to 12.0v io =10ma to 1.0a, vin = 6.5 to 15.0v 0.1 2.0 2.0 2.0 2.0 2.0 3.0 4.0 0.2 7.0 7.0 7.0 7.0 7.0 7.0 10.0 % mv mv mv mv mv mv mv load regulation il1117-1.2 il1117-1.25 (adjustable) il1117-1.5 il1117-1.8 il1117-2.5 il1117- 2 . 8 5 il1117- 3 . 3 il1117-5.0 io = 10ma to 1.0a, vin = 3.2v io = 10ma to 1.0a, vin = 3.3v io = 10ma to 1.0a, vin = 3.5v io = 10ma to 1.0a, vin = 3.8v io = 10ma to 1.0a, vin = 4.5v io = 10ma to 1.0a, vin = 4.85v io = 10ma to 1.0a, vin = 5.3v io = 10ma to 1.0a, vin = 7.0v 0.2 3.0 3.0 3.0 3.0 3.0 4.0 5.0 0.4 10.0 10.0 10.0 10.0 10.0 12.0 15.0 % mv mv mv mv mv mv mv dr o p ou t v o lta g e ( 2 ) all models io = 800ma io = 1 a 1.10 1.20 1.20 1.30 v i o = 1 a ( t j = -25c to +125c.) 1.20 1.55 current limit vi n = 5 v 1000 1250 1600 ma minimum load current adjustable models vi n = 13.75v 5 ma quiescent current vi n = 5 v 5.2 10 ma adjust pin current io = 10ma, v i n = 1.4 to 10v 50 120 ua vs load current, il1117 io = 10ma to 1a, vi n = 1.4 to 10v 0.5 5 u a temperature drift tj = -25c to +125c 0.5 % rms output noise bandwidth of 10hz to 10khz at 25 c 0.003 %vo ripple rejection ratio 120hz input ripple(cadj for adj) = 25uf vi n - v o = 5 v , io = 1.0a tj = -25c to +125c 60 72 db notes: (1) il1117-x adjustable ve rsions require a m i n i m u m l oad current for 3% regulation. (2) dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage. 2
IL1117-XX block diagram application information il1117 (adj) il1117 figure 1. fixed-voltage model figure 2. adjustable-voltage model ?basic c onnections. --basic connections. 3
IL1117-XX 4
IL1117-XX 5
IL1117-XX 6
IL1117-XX 7
IL1117-XX 8
IL1117-XX 9
|
