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austriamicrosystems ag is now ams ag the technical content of this austriamicrosystems datasheet is still valid. contact information: headquarters: ams ag tobelbaderstrasse 30 8141 unterpremstaetten, austria tel: +43 (0) 3136 500 0 e - mail: ams_sales @ams.com please visit our website at www.ams.com
as13985 micropower 150ma low-noise ldo www.austriamicrosystems.com revision 1.13 1 - 12 datasheet 1 general description the as13985 is a high-performance low-dropout 150ma voltage regulator designed for use with very-low esr out- put capacitors. the device can deliver superior perfor- mance in all specifications critical to battery-powered designs, and is perfectly suited for mobile phones, pdas, mp3 players, and other battery powered devices. stability is guaranteed with a ceramic output capacitor from 1 to 22f. the low equivalent series resistance of these capacitors ensures low output impedance at high frequen- cies. automatic sleep mode requires less than 1a quiescent current when pin en is pulled low. regulation performance is excellent even under low drop- out conditions, when the power tr ansistor has to operate in linear mode. a 10nf bypass capacitor can be added to reduce output noise to 30v. the low-noise performance allows direct connection of noise sensitive ci rcuits without additional fil- tering networks. multiple output voltage options are available as standard products. contact austriam icrosystems ag for details. the as13985 is available in a 5-bump wlp package and a 5-pin sot23 package. figure 1. as13985 - block diagram 2 key features ultra-low dropout voltage (typically 45mv @ 150ma, 0.3mv @ 1ma) supply range: 2.5v to 5.5v output voltage range: 1.2v to 5.0v (in 25mv steps) output current: 150ma (guaranteed) stable with low-esr output capacitor integrated over-temperature /over-current protection low gnd pin current (only 95a) output voltage accuracy: 1% minimal external components required high peak-current capability low shutdown current: 1a operating temperature junction range: -40 to +125c smallest available packages: - 5-bump wlp -5-pin sot23 3 applications the as13985 is ideal for powering cordless and mobile phones, mp3 players, cd and dvd players, pdas, hand- held computers, digital cameras, and any other hand-held battery-powered device. v ref as13985 over-current/ over-temperature protection + ? en vin vout bypass gnd ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 2 - 12 as13985 datasheet - pinout 4 pinout 4.1 pin assignments figure 2. pin assignments (top view) 4.2 pin descriptions table 1. pin descriptions name wlp sot23 description vin 4 1 input voltage gnd 2 2 ground bypass 5 3 low-noise operation bypass capacitor en 1 4 logic-high enable input . v en 1.2v: v out is enabled. v en 0.4v: v out is disabled. vout 3 5 regulated output voltage as13985 (wlp; top through view) 1 54 3 2 as13985 (sot23) 2 gnd 3 bypass 1 vin 4 en 5 vout ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 3 - 12 as13985 datasheet - absolute maximum ratings 5 absolute maximum ratings stresses beyond those listed in table 2 may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond t hose indicated in section 6 electrical characteristics on page 4 is not implied. exposure to ab solute maximum rating conditions for extended periods may affect device reliability. p (max) = (t j(max) - (t amb ))/ ja (eq 1) where: the value of ja for the sot23 package is 220oc/w in a typical pc-board mounting. the value of ja for the wlp package is 225oc/w. note: exceeding the maximum allowable dissipation will ca use excessive device temperature and the regula- tor will go into thermal shutdown. table 2. absolute maximum ratings parameter min max units comments input supply voltage (survival) -0.3 +7 v input supply voltage (operating) +2.5 +5.5 v shutdown input voltage (survival) -0.3 +7 v output voltage (survival) -0.3 +7 v i out (survival) short-circuit protected. input/output voltage (survival) 1 1. the output pnp structure co ntains a diode between pins v in and v out that is normally reverse-biased. revers- ing the polarity of pins v in and v out will activate this diode. -0.3 +7 v power dissipation 2 2. the maximum allowable power dissipation is a function of the maximum junction temperature (t j(max ), the junction-to-ambient thermal resistance ( ja ), and the ambient temperature (t amb ). the maximum allowable power dissipation at any ambient temperature is calculated as: internally limited. operating junction temperature -40 +125 oc storage temperature range -65 +150 oc package body temperature +260 oc the reflow peak soldering temperature (body temperature) specified is in accordance with ipc/ jedec j-std-020d ?moistu re/reflow sensitivity classification for non-hermetic solid state surface mount devices?. the lead finish for pb-free leaded packages is matte tin (100% sn). ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 4 - 12 as13985 datasheet - electrical characteristics 6 electrical characteristics t amb = 25oc, v in = v out(nom) +0.5v, c out = c in = 1f, c bypass = 10nf, i out = 1ma, v en = 1.4v (unless otherwise spec- ified) caution: exposing the wlp package to direct light could cause device malfunction. table 3. electrical characteristics symbol parameter conditions min typ max unit v in operating input voltage 2.5 5.5 v v out(nom) - v out output voltage accuracy < 2.5v v out i out = 1ma -50 50 mv t amb = -40 to 125oc -75 75 output voltage accuracy 2.5v v out i out = 1ma -1 1 % of v out(nom) t amb = -40 to 125oc -2 2 v out line regulation 1 v in = (v out(nom) + 0.5v) to 4.5v, v out < 3v -0.15 0.15 %/v v in = (v out(nom) + 0.5v) to 5.5v, v out < 3v -0.3 0.3 load regulation i out = 1 to 150ma, v out < 2.5v, t amb = -40 to 125oc 0.002 0.008 %/ma i out = 1 to 150ma, v out 2.5v, t amb = -40 to 125oc (for wlp) 0.0004 0.002 i out = 1 to 150ma, t amb = -40 to 125oc (for sot23-5), v out 2.5v 0.0025 0.005 output ac line regulation v in = v out(nom) + 1v, i out = 150ma, t r = t f = 30s 1 mv pp i q quiescent current on mode: v en = 1.2v, i out = 0ma 95 a on mode: v en = 1.2v, i out = 0ma, t amb = -40 to 125oc 130 on mode: v en = 1.2v, i out = 0 to 150ma 160 on mode: v en = 1.2v, i out = 0 to 150ma, t amb = -40 to 125oc 250 2 off mode: v en = 0.4v, i out = 0ma 0.003 2 off mode: v en = 0.4v, t amb = -40 to 125oc, i out = 0ma 1 v drop dropout voltage 3 i out = 1ma 0.3 mv i out = 1ma, t amb = -40 to 125oc 2 2 i out = 50ma 15 i out = 50ma, t amb = -40 to 125oc 35 i out = 100ma 30 i out = 100ma, t amb = -40 to 125oc 70 i out = 150ma 45 i out = 150ma, t amb = -40 to 125oc 100 i sc short circuit current r load = 0 500 ma svr supply voltage rejection v in = v out(nom) + 1v, v ripple = 50mv, i out = 50ma, f = 1khz 60 db v in = v out(nom) + 1v, v ripple = 50mv, i out = 50ma, f= 10khz 55 i out(pk) peak output current v out v out(nom) - 5% 300 500 ma v en enable input logic low v in = 2.5 to 5.5v, t amb = -40 to 125oc 4 0.4 v enable input logic high 1.2 ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 5 - 12 as13985 datasheet - electrical characteristics figure 3. ac line regulation input voltage test signal figure 4. svr input voltage test signal i en enable input current v en = 0.4v, v in = 5.5v 1 2 na en output noise voltage bw = 10hz to 100khz, c out = 1f, i out = 0ma 30 v rms t on turn on time 5 c bypass = 10nf 150 250 s t shdn thermal shutdown threshold 4, 6 160 oc recommended output capacitor c out output capacitor capacitance 1 22 2 f esr 5 5000 m 1. temperature variations are included within the output voltage accuracy. 2. guaranteed by design. 3. dropout voltage is the input-to-output voltage difference at which the output voltage is 100mv below its nominal value (does not apply to input voltages below 2.5v). 4. en must be driven with a t r = t f < 10ms. 5. turn on time is time measured between the enable input just exceeding the v en high value and the output volt- age just reaching 95% of its nominal value. 6. typical thermal protection hysteresis is 20oc. note: all limits are guaranteed. the parameters with min and max values are guaranteed with production tests or sqc (statistical quality control) methods. table 3. electrical characteristics symbol parameter conditions min typ max unit 600mv 600s 4.6ms 30s v in = v out(nom) + 1v 30s v in 50mv v out(nom) + 1v ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 6 - 12 as13985 datasheet - typical operating characteristics 7 typical operating characteristics t amb = +25oc (unless otherwise specified) figure 5. output voltage vs. temperature; figure 6. shutdown voltage vs. temperature; v in = 3.4v, v shdn = 1.4v, i out = 1ma v out = 2.9v, i out = 10ma figure 7. load regulation vs. temperature; figure 8. line regulation vs. temperature; v in = 3.4v, v shdn = 1.4v, i out = 1 to 150ma v in = 3.4 to 5.0v, v shdn =1.4v, i out =1ma figure 9. svr vs. frequency; v in = 3.9 to 3.95v, figure 10. quie scent current vs. temperature; v out = 2.9v, i out = 50ma, v shdn = 1.4v v out = 2.9v, v shdn = 1.4v 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3 -45 -20 5 30 55 80 105 130 temperature (c) output voltage (v) . 0.6 0.7 0.8 0.9 1 -45 -20 5 30 55 80 105 130 temperature (c) shutdown voltage (v) . v in = 5.5v v in = 3.8v -0.0075 -0.005 -0.0025 0 0.0025 0.005 0.0075 -45 -20 5 30 55 80 105 130 temperature (c) load (%/ma) . -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 -45 -20 5 30 55 80 105 130 temperature (c) line (%/v) . 0 10 20 30 40 50 60 70 80 90 100 0.1 2.1 4.1 6.1 8.1 10.1 frequency (khz) svr (db) . 0 50 100 150 200 250 300 -45 -20 5 30 55 80 105 130 temperature (c) i q (a) . v in = 5.5v v in = 3.4v ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 7 - 12 as13985 datasheet - typical operating characteristics figure 11. line transient response; v in = 3.8 to 4.4v, figure 12. turn on time; v in = 3.3v, c bypass = 10nf, t j = 25oc, i out = 150ma, c in = c out = 1f, v out = 2.7v c in = c out = 1f (ceramic), t r = 20ns, c bypass = 10nf, rise time/fall time = 1s i out = 1ma, v out = 2.8v v out 1ms/div 1v/div 2mv/div v in en 50s/div 500mv/div 500mv/div v out ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 8 - 12 as13985 datasheet - typical application 8 typical application figure 13. typical application diagram v ref as13985 v in v out over-current/ over-temperature protection + ? gnd 1.23v c bypass 0.01f c in 1f c out 1f en vin vout bypass gnd ams ag technical content still valid
www.austriamicrosystems.com revision 1.13 9 - 12 as13985 datasheet - package drawings and markings 9 package drawings and markings the as13985 is available in a 5-bump wlp package and a 5-pin sot23 package. figure 14. 5-bump wlp package ams ag technical content still valid
www.austriamicrosystems.co m revision 1.13 10 - 12 as13985 datasheet - package drawings and markings figure 15. 5-pin sot23 package notes: 1. all dimensions are in millimeters. 2. foot length is measured at the intercept point between datum a and lead surface. 3. package outline exclusive of mold flash and metal burr. 4. package outline inclusive of solder plating. 5. complies with eiaj sc74 . symbol min max a 0.90 1.45 a1 0.00 0.15 a2 0.90 1.30 b 0.30 0.50 c 0.09 0.20 d 2.80 3.05 e 2.60 3.00 e1 1.50 1.75 l 0.30 0.55 e 0.95 ref e1 1.90 ref 0o 8o ams ag technical content still valid
www.austriamicrosystems.co m revision 1.13 11 - 12 as13985 datasheet - ordering information 10 ordering information the as13985 is available as the standard versions listed in ta b l e 4 . other versions are available upon request. for more information and inquiries contact http://www.austriamicr osystems.com/contact note: all products are rohs compliant and pb-free. buy our products or get free samples online at icdirect: http://www.austriamicr osystems.com/icdirect for further information and requests, please contact us mailto:sales@austriamicrosystems.com or find your local distributor at http://www.a ustriamicrosystems.com/distributor table 4. ordering information ordering code marking description delivery form package as13985f33-t askk 3.3v ldo, 150ma tape and reel 5-bump wlp as13985f30-t askj 3.0v ldo, 150ma tape and reel 5-bump wlp as13985f29-t aski 2.9v ldo, 150ma tape and reel 5-bump wlp as13985f28-t asle 2.8v ldo, 150ma tape and reel 5-bump wlp as13985f27-t askl 2.7v ldo, 150ma tape and reel 5-bump wlp AS13985F18-T askm 1.8v ldo, 150ma tape and reel 5-bump wlp as13985f12-t askn 1.2v ldo, 150ma tape and reel 5-bump wlp as13985h33-t ask0 3.3v ldo, 150ma tape and reel 5-pin sot23 as13985h30-t ask1 3.0v ldo, 150ma tape and reel 5-pin sot23 as13985h29-t ask2 2.9v ldo, 150ma tape and reel 5-pin sot23 as13985h28-t aslf 2.8v ldo, 150ma tape and reel 5-pin sot23 as13985h27-t ask3 2.7v ldo, 150ma tape and reel 5-pin sot23 as13985h18-t ask4 1.8v ldo, 150ma tape and reel 5-pin sot23 as13985h12-t ask5 1.2v ldo, 150ma tape and reel 5-pin sot23 ams ag technical content still valid
www.austriamicrosystems.co m revision 1.13 12 - 12 as13985 datasheet copyrights copyright ? 1997-200 9, austriamicrosystems ag, tobelbaderstrasse 30, 8141 unterpremstaet ten, austria-europe. trademarks registered ?. all rights reserved. the mate rial herein may not be reproduced, adapted, merged, translated, stored, or used wi thout the prior written consent of the copyright owner. all products and companies mentioned are trademarks or registered trademarks of their respective companies. disclaimer devices sold by austriamicrosystems ag are covered by t he warranty and patent indemni fication provisions appearing in its term of sale. austriamicrosystems ag makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freed om of the described devices from patent infringement. austriamicrosystems ag reserves the right to change spec ifications and prices at an y time and without notice. therefore, prior to designing this pro duct into a system, it is necessary to check with austriam icrosystems ag for current information. this product is intended for use in normal commercial applications. applications requiring extended temperature range, unus ual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems ag for each application. for shipments of less than 100 parts the m anufacturing flow might show deviations from the standard production flow, such as test flow or test location. the information furnished here by austriamicrosystems ag is believed to be correct and accurate. however, austriamicrosystems ag shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. no obligation or liability to reci pient or any third party shall arise or flow out of austriamicrosystems ag rendering of technical or other services. contact information headquarters austriamicrosystems ag tobelbaderstrasse 30 a-8141 unterpremstaetten, austria tel: +43 (0) 3136 500 0 fax: +43 (0) 3136 525 01 for sales offices, distributors a nd representatives, please visit: http://www.austriamicrosystems.com/contact ams ag technical content still valid

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