WL2003B low noise, high psrr rf ldo descriptions the WL2003B series are low dropout linear regulators and optimized to provide a high performance solution for battery power system to deliver low quiescent current. the WL2003B series are designed for portable rf and wireless applications to deliver ultra low output noise and high psrr. the devices offer a new level of cost effective performance in cellular phones, laptop and notebook computers, and other portable devices. the WL2003B series are designed to make use of low cost ceramic capacitors which ensure the stability of the output current, and enhance the efficiency in order to prolong the battery life of those portable devices. the WL2003B regulators are available in sot-353 package. standard products are pb-free and halogen-free features input voltage : 2.5v ~ 5.5v output voltage : 1.2v ~ 3.3v output current : 300ma @ v out >2v : 150ma @ v out <2v psrr : 70db @ 1khz output noise : 100uvp-p quiescent current : 120a shut-down current : < 0.1a dropout voltage : 120mv recommend capacitor : 1uf operating temperature : -40 ~ +85 c over current/over temperature protection applications mp3/mp4 players cellphones, radiophone, digital cameras bluetooth, wireless handsets others portable electronics device sot-353(sc70-5) pin configuration (top view) *** for detail marking information, please see page 7. marking order informations for detail order information, please see page 7. vin gnd en nc vout 2 3 4 5 1 1 of 7 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
typical applications block diagram pin descriptions pin symbol description 1 vin input 2 gnd ground 3 en enable (active high) 4 nc not connected 5 vout output 2 3 4 5 1 off on vin vout 1uf 1uf v ref gnd vout vin en current limit enable control otp WL2003B 2 of 7 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
absolute maximum ratings recommend operating ratings electronics characteristics (t a =25c, v in =v out +1v, c in =c out =1uf, unless otherwise noted) parameter value unit power dissipation 300 mw v in range -0.3 6.5 v v en range -0.3 v in v v out range -0.3 v in v lead temperature range 260 o c storage temperature range -55 ~ 150 o c operating junction temperature range 150 o c esd rating (hbm) 8000 v esd rating (mm) 500 v esd rating (cdm) 4000 v parameter value unit thermal resistance, r ja 380 o c/w operating temperature range -40 85 o c parameter symb ol condition min. typ. max. unit v out < =1.5v 30 mv output voltage accuracy v out v out > 1.5v 2 % current limit i lim v in = vout+1v 400 ma i out =200ma, vout=2.8v 120 200 dropout voltage v drop i out =300ma, vout=2.8v 190 300 mv line regulation ? v line v in =2.5~5.5v, iout =1ma 0.03 0.15 %/v load regulation ? v load v in =3.8v, i out = 1~ 300ma 22 30 mv quiescent current i q v en >1.2v, out =0 120 150 ua shut-down current i shdn v in =3.3v,en=0v 0.1 1.0 ua f=100hz ,i out =10 ma,0.5vpp 70 power supply rejection rate psrr f=10khz, i out =10ma,0.5vpp 67 db en logic high voltage v enh v in =v out +1v, start-up 1.2 v en logic low voltage v enl v in =v out +1v, shutdown 0.4 v en input current i en ven= 0 to 5v 1.0 ua output noise voltage e no 10hz to 100khz, i out =200ma, c out =1 uf 100 uvp-p thermal shutdown temperature t sd 165 o c thermal shutdown hysteresis t sd 30 o c WL2003B 3 of 7 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
typical characteristics quiescent current vs. temperature output voltage vs. output current en shutdown threshold vs. temperature output voltage vs. temperature psrr vs. frequency start up -50 0 50 100 150 2.6 2.7 2.8 2.9 v in =3.8v,v out =2.8v,i out =0ma output voltage(v) temperature(c o ) -50 0 50 100 150 80 100 120 140 160 180 v in =3.8v,v out =2.8v,i out =0ma quiescent current(ua) temperature(c o ) 0 200 400 600 0.0 0.6 1.2 1.8 2.4 3.0 output current(ma) v in =v en =3.8v,v out =2.8v output voltage(v) 0.1 1 10 -72 -68 -64 -60 -56 v pp =0.2v psrr(db) frequency(khz) v in =3.8v,v out =2.8v,i out =10ma v pp =0.5v -50 0 50 100 150 0.4 0.5 0.6 0.7 0.8 v in =3.8v,v out =2.8v,i out =0ma en shutdown threshold(v) temperature(c o ) WL2003B 4 of 7 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
line regulation load regulation line regulation load regulation output noise (vdd by battery) WL2003B 5 of 7 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
package outline dimensions sot-353 dimensions in millimeters symbol min. max. a 0.900 1.100 a1 0.000 0.100 a2 0.900 1.000 b 0.150 0.350 c 0.080 0.150 d 2.000 2.200 e 1.150 1.350 e1 2.150 2.450 e 0.650 typ. e1 1.2 1.4 l 0.525 ref. l1 0.260 0.460 0 o 8 o WL2003B 6 of 7 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
order information marking: * = month code (a~z) 12 = voltage code (12: 1.2v) ordering no. vout (v) package operating temperature marking shipping WL2003B12g-5/tr 1.2 sot-353 -40~+85 c *12 tape and reel, 3000 WL2003B13g-5/tr 1.3 sot-353 -40~+85 c *13 tape and reel, 3000 WL2003B15g-5/tr 1.5 sot-353 -40~+85 c *15 tape and reel, 3000 WL2003B18g-5/tr 1.8 sot-353 -40~+85 c *18 tape and reel, 3000 WL2003B25g-5/tr 2.5 sot-353 -40~+85 c *25 tape and reel, 3000 WL2003B28g-5/tr 2.8 sot-353 -40~+85 c *28 tape and reel, 3000 WL2003B30g-5/tr 3.0 sot-353 -40~+85 c *30 tape and reel, 3000 WL2003B33g-5/tr 3.3 sot-353 -40~+85 c *33 tape and reel, 3000 WL2003B 7 of 7 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
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