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wl28 52k will semiconductor ltd. 1 nov 2016 C rev . 1. 8 wl28 52k high input voltage , low quiescent current ldo descriptions the wl28 52k s eries is a high accuracy, high input voltage low quiescent current , high speed, and low dropout line r regulator with high ripple rejection. the device is manufactured with bi - cmos process. the WL2852K offer s over - current limit and over temperature protection to ensure the device working in well conditions. the wl28 52k regulators are availab le in standard sot - 89 - 3 l packages . standard products are pb - free and halogen - fre e . features ? supply v oltage : 4.75 v~ 4 0 v ? output r ange : 1. 8 v~ 5. 7 v ? output accuracy : <+/ - 2% ? o utput c urrent : 1 0 0ma (up to 15 0ma typ .) ? psrr : 60 db @ 100 hz ? dropout v oltage : 80 0mv @ i out = 1 00ma ? quiescent c urrent : 10 a @ v in =7v( typ. ) ? recommend c apacitor : 10 uf locate cin as close to the vin pin as possible. http://www. sh - willsemi.com sot - 89 pin configuration (top view) for detail markin g information, please see page 10 . marking order information for detail orde r information, please see page 10 . 1 2 3 vout gnd vin 2852 k ** yyww 1 2 3 vout gnd vin 2852 k ** yyww
wl28 52k will semiconductor ltd. 2 nov 2016 C rev . 1. 8 typical application pin description b lock diagram pin symbol description 1 v out voltage out put 2 gnd ground 3 v in voltage in put w l 2 8 5 2 g n d c 1 1 0 u f c 2 1 0 u f v o u t v i n v i n g n d v o u t v r e f v i n v o u t
wl28 52k will semiconductor ltd. 3 nov 2016 C rev . 1. 8 absolute maximum ratings recommend operating ratings parameter value unit power dissipation internal limited mw v in range - 0 .3 4 5 v v out range - 0 .3 6.5 v lead temperature range 260 o c storage temperature range - 5 5 ~ 150 o c operating junction temperature range 150 o c esd mm 400 v esd hbm 4k v parameter value unit operating supply voltage 4.75 4 0 v operating temperature range - 40 85 o c thermal resistance (on pcb) , r ja 43.5 o c/w power dissipation 1000 mw
wl28 52k will semiconductor ltd. 4 nov 2016 C rev . 1. 8 electronics c haracteristics (ta=25 o c, v in = 12 v, c in =c out =1 0 uf, unless otherwise noted) symbol parameter test con dition WL2852K spec unit min. typ. max. v in input range i out =10ma 4.75 4 0 v v out output range i out =10ma v out *0.98 v out v out *1.02 v v out output voltage v in =12v,i out =10ma 5.586 5.7 5.814 v 5.194 5.3 5.406 v 4.9 5.0 5.1 v 4.312 4.4 4.488 v 3.920 4.0 4.080 v 3.528 3.6 3.672 v 3.234 3.3 3.366 v i out _pk maximum output current v in =12v, r l =1 180 280 460 ma i q quiescent curre nt v in =7v, no load 10 15 a v in =24v, no load 11 16 v in =40v, no load 13 20 v d rop dropout voltag e i out =1ma 8 12 mv i out =100ma 800 1200 v line line regulation v in =7 -- 24v,v out =5v i out =1ma 0.02 %/v v in =7 -- 45v,v out =5v i out =1ma 0.1 v load load regulation v in =12v, i out =1 -- 100ma 0.6 % e no output noise i out =10ma - 100 +100 v psrr ripple rejection v in =10v v pp =0.5v i out =1ma f =100hz 60 db f =1khz 45 f =10khz 3 5 t sd thermal protection v in =12v, i out =1ma 165 t sd_hys thermal protection hys v in =12v, i out =1ma 30 vo/t temperature cofficient v in =12v, i out =1ma 0.5 mv/
wl28 52k will semiconductor ltd. 5 nov 2016 C rev . 1. 8 t ypical characteristics ( ta=25oc, cin=cout=1 0 uf, unless otherwise noted ) quiescent current vs. input voltage quiescent current vs. input voltage output voltage vs. temperature output voltage vs. temperature output voltage vs. input voltage output voltage vs. input voltage 0 5 10 15 20 25 30 35 40 45 0 2 4 6 8 10 12 14 16 18 20 v out = 3.3v quiescent current ( ua ) input voltage ( v ) 0 5 10 15 20 25 30 35 40 45 0 2 4 6 8 10 12 14 16 18 20 v out = 5.0v quiescent current ( ua ) input voltage ( v ) -40 -20 0 20 40 60 80 100 120 140 160 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 v in = 6 v v in = 12 v v in = 24 v v in = 30 v output voltage ( v ) temperature ( o c ) i o = 1 ma v out = 3.3v -40 -20 0 20 40 60 80 100 4.65 4.70 4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 i o = 1 ma v out = 5.0v output voltage ( v ) temperature ( o c ) v in = 6 v v in = 12 v v in = 24 v v in = 30 v 0 5 10 15 20 25 30 35 40 45 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 output voltage ( v ) input voltage ( v ) i out = 1 ma i out = 10 ma i out = 100 ma 0 5 10 15 20 25 30 35 40 45 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 output voltage ( v ) input voltage ( v ) i out = 1 ma i out = 10 ma i out = 100 ma
wl28 52k will semiconductor ltd. 6 nov 2016 C rev . 1. 8 output voltage vs. load current output voltage vs. load current output voltage vs. load current output voltage vs. l oad current output voltage vs. load current output voltage vs. load current 0 40 80 120 160 200 240 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 output voltage ( v ) load current ( ma ) -40 o c v in = 6 v v in = 12 v v in = 24 v v in = 30 v 0 40 80 120 160 200 240 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 output voltage ( v ) load current ( ma ) -40 o c v in = 6 v v in = 12 v v in = 24 v v in = 30 v 0 40 80 120 160 200 240 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 output voltage ( v ) load current ( ma ) 25 o c v in = 6 v v in = 12 v v in = 24 v v in = 30 v 0 40 80 120 160 200 240 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 output voltage ( v ) load current ( ma ) 25 o c v in = 6 v v in = 12 v v in = 24 v v in = 30 v 0 20 40 60 80 100 120 140 160 180 200 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 85 o c v in = 6 v v in = 12 v v in = 24 v v in = 30 v output voltage ( v ) load current ( ma ) 0 20 40 60 80 100 120 140 160 180 200 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 85 o c v in = 6 v v in = 12 v v in = 24 v v in = 30 v output voltage ( v ) load current ( ma )
wl28 52k will semiconductor ltd. 7 nov 2016 C rev . 1. 8 dropout voltage vs. output current dropout voltage vs. output current psrr vs. frequency psrr vs. frequency psrr vs. frequency psrr vs. frequency 0 20 40 60 80 100 120 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 v out = 3.3v dropout voltage ( v ) output current ( ma ) 0 20 40 60 80 100 120 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 v out = 5.0v dropout voltage ( v ) output current ( ma ) 10 100 1000 10000 0 10 20 30 40 50 60 70 80 90 100 i o = 1 ma v out = 3.3v v in = 12 vdc + 0.5 v p-pac psrr(db) frequency(hz) 10 100 1000 10000 0 10 20 30 40 50 60 70 80 90 100 i o = 1 ma v out = 5.0v v in = 12 vdc + 0.5 v p-pac psrr(db) frequency(hz) 10 100 1000 10000 0 10 20 30 40 50 60 70 80 90 100 i o = 1 ma v out = 3.3v v in = 24 vdc + 0.5 v p-pac psrr(db) frequency(hz) 10 100 1000 10000 0 10 20 30 40 50 60 70 80 90 100 i o = 1 ma v out = 5.0v v in = 24 vdc + 0.5 v p-pac psrr(db) frequency(hz)
wl28 52k will semiconductor ltd. 8 nov 2016 C rev . 1. 8 psrr vs. frequency psrr vs. frequency quiescent current vs. output current 10 100 1000 10000 0 10 20 30 40 50 60 70 80 90 100 i o = 1 ma v out = 3.3v v in = 30 vdc + 0.5 v p-pac psrr(db) frequency(hz) 10 100 1000 10000 0 10 20 30 40 50 60 70 80 90 100 i o = 1 ma v out = 5.0v v in = 30 vdc + 0.5 v p-pac psrr(db) frequency(hz) 1 10 100 1000 10000 100000 0 2 4 6 8 10 12 14 16 18 20 22 24 i q (ua) i out (ua) v cc =5v v cc =10v v cc =20v v cc =30v
wl28 52k will semiconductor ltd. 9 nov 2016 C rev . 1. 8 startup from power on startup from power on s hutdown from power o ff s hutdown from power o ff v i n = 1 2 v v o u t = 3 . 3 v i o = 1 m a v i n = 1 2 v v o u t = 5 . 0 v i o = 1 m a v i n = 1 2 v v o u t = 3 . 3 v i o = 1 m a v i n = 1 2 v v o u t = 5 . 0 v i o = 1 m a
wl28 52k will semiconductor ltd. 10 nov 2016 C rev . 1. 8 order information marking: 2852k ** = device code y y = year ww = week orde ring no. vout (v) package operating temperature marking shipping WL2852K33 - 3/tr 3.3 sot - 89 - 40~+85c 2852k dd yyww tape and reel, 1 000 WL2852K36 - 3/tr 3.6 sot - 89 - 40~+85c 2852kdg yyww tape and reel, 1 000 WL2852K40 - 3/tr 4.0 sot - 89 - 40~+85c 2852kea yyww tape and reel, 1 000 WL2852K44 - 3/tr 4.4 sot - 89 - 40~+85c 2852kee yyww tape and reel, 1 000 WL2852K50 - 3/tr 5.0 sot - 89 - 40~+85c 2852kfa yyww tape and reel, 1 000 WL2852K53 - 3/tr 5.3 sot - 89 - 40~+85c 2852kfd yyww tape and reel, 1 000 WL2852K57 - 3/tr 5.7 sot - 89 - 40~+85c 2852kfh yyww tape and reel, 1 000
wl28 52k will semiconductor ltd. 11 nov 2016 C rev . 1. 8 package outline dimensions sot - 89 - 3l symbol dimensions in millimeters min. max. a 1.400 1.600 b 0.320 0.520 b 1 0.400 0.580 c 0.350 0.440 d 4.400 4.600 d1 1.550 1.800 d2 1.600 1.900 e 2.300 2.600 e1 3.940 4.250 e2 1.940 2.290 e3 0.600 0.800 h 2.700 3.000 e 1.500typ e 1 3.000typ l 0.890 1.200 1 45 bottom view side view top view e1 e e2 a c b b1 1 h d2 e l e3 e1 d1 d ( ) ( )
wl28 52k will semiconductor ltd. 12 nov 2016 C rev . 1. 8 tape and reel information reel dimensions rd tape dim ensions w p1 quadrant assignments for pin1 orientation in tape q1 q2 q3 q4 q1 q2 q3 q4 rd reel dimension 7 inch 13 inch p1 pitch between successive cavity centers 2 mm 4 mm 8 mm w overall width of the carrier tape 8 mm 12 mm pin1 pin1 quadrant q1 q2 q3 q4 userdirection offeed reel dimensions rd w p1 q1 q2 q3 q4 q1 q2 q3 q4

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