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a s1 3 6 0 1 . 5 a l o w p o w e r, p o s i ti ve vo l t a g e r e g u l a to r www.austriamicrosystems.com/ldos/as1360 revision 1.07 1 13 d at ash ee t 1 general description the as1360 lowpower, positive voltage regulator wa s designed to deliver up to 250ma while consuming only 1.5a of q uiescent cur rent. the device is available in fixed output volta ges of 1.8, 2.1, 2.5, 3.0, 3.3, 4.0, 4.5 and 5.0v. the device features integrated shortcircuit and ov ercurrent protec tion. the wide input voltage range, lowdropout voltage, and highaccu racy output voltage makes the device perfectly suit ed for 2 and 3 cell batterypowered and portable applications. the low dropout voltage (650mv) prolongs battery li fe and allows high current in small applications when operated wi th minimum inputtooutput voltage differentials. the device features very stable output voltage (usi ng only 1f tanta lum or aluminumelectrolytic capacitors), strict ou tput voltage regula tion tolerances (0.5%), and excellent lineregulat ion. the as1360 is available in a 3pin sot23 package. figure 1. as1360 block diagram 2 key features low quiescent current: 1.5a input voltage range: up to 20v low dropout voltage 250mv @ 100ma 400mv @ 200ma fixed output voltages: 1.8, 2.1, 2.5, 3.0, 3.3, 4.0 , 4.5, 5.0v high output current: 250ma (v out = 5.0v) highaccuracy output voltage: 1.5% exceptional line regulation: 0.1%/v low temperature drift: 100ppm/oc integrated shortcircuit and overcurrent protection 3pin sot23 package 3 applications the device is ideal for mobile phones, pdas, digita l cameras, smart battery packs, batterypowered alarms, solarpowere d instruments, intelligent instruments, co2 and smoke detectors, c pu power sup plies, and any batterypowered application. +C short-circuit protection gnd 1 3 v in 2v out voltage reference as1360
www.austriamicrosystems.com/ldos/as1360 revision 1.07 2 13 as1360 datasheet p i n o u t a n d p a c k a g i n g 4 pinout and packaging pin assignments figure 2. pin assignments (top view) pin descriptions table 1. pin descriptions pin number pin name description 1 gnd ground . this pin should be connected to the negative side of the output and the negative terminal of the input capacitor. no highcurrent fl ows out of this pin, only bias current (1.5a, typ). note: voltage drops between this pin and the negative sid e of the load should be mini mized. 2 vout regulated output voltage. this pin should be connec ted to the positive side of the load and the positive terminal of the output capacitor. curr ent flowing out of this pin is equivalent dc load current. note: the positive side of the output capacitor should be mounted as close as is practical to this pin. 3 vin unregulated input voltage. this pin should be conne cted to the positive terminal of the input capacitor. note: the input capacitor should be mounted as close as i s practical to this pin. 3 1 3-pin sot23 vin gnd vout 2 as1360
www.austriamicrosystems.com/ldos/as1360 revision 1.07 3 13 as1360 datasheet a b s o l u t e m a x i m u m r a t i n g s 5 absolute maximum ratings stresses beyond those listed in table 2 may cause permanent damage to the device. these ar e stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in section 6 electrical characteristics on page 4 is not implied. exposure to absolute maximum rating conditions for extended per iods may affect device reliability. table 2. absolute maximum ratings parameter min max units comments electrical parameters input voltage +30 v continuous output current pd/ (v in v out ) ma peak output current 500 ma output voltage 0.3v v in + 0.3v or +7v v minimum of the two values electrostatic discharge electrostatic discharge hbm +/ 1 kv norm: mil 883 e m ethod 3015 thermal information thermal resistance q ja 230 oc/w typical fr4, 4layer application temperature ranges and storage conditions storage temperature range 40 +125 oc package body temperature +260 oc the reflow peak soldering temperature (body temperature) specified is in compliance with ipc/ jedec jstd020 moisture/ reflow sensitivity classification for nonhermetic solid state surface mount devices . humidity noncondensing 5 85 % moisture sensitive level 1 represents a max. floor li fe time of unlimited
www.austriamicrosystems.com/ldos/as1360 revision 1.07 4 13 as1360 datasheet e l e c t r i c a l c h a r a c t e r i s t i c s 6 electrical characteristics typical values are at t amb = +25c, v dd = 3.3v (unless otherwise specified). all limits ar e guaranteed. the parameters with min and max val ues are guaranteed with production tests or sqc (st atistical quality control) methods. table 3. electrical characteristics symbol parameter condition min typ max unit t amb operating temperature range 40 +85 c v in input voltage 20 v v out output voltage i out = 40ma 1 , i out = 15ma if v out = 1.8v 1. v outnom is the nominal device output voltage. v outnom 1.5% v outnom 0.5% v outnom + 1.5% v i out(max) maximum output current v out = 5.0v (v in = v outnom + 1.0v) 250 ma v out = 4.0v 200 v out = 3.3v 150 v out = 3.0v 150 v out = 2.5v 125 v out = 2.1v 115 v out = 1.8v 110 d v out /v out load regulation 2 2. measured at a constant junction temperature using low duty cycle pulse testing. v out = 5.0v, 1ma i out 100ma 1.60 0.8 +1.60 % v out = 4.0v, 1ma i out 100ma 2.25 1.1 +2.25 v out = 3.3v, 1ma i out 80ma 2.72 1.3 +2.72 v out = 3.0v, 1ma i out 80ma 3.00 1.5 +3.00 v out = 2.5v, 1ma i out 60ma 3.60 1.8 +3.60 v out = 2.1v, 1ma i out 40ma 2.60 1.6 +2.60 v out = 1.8v, 1ma i out 30ma 1.60 0.8 +1.60 d v out x 100/ d v in x v out line regulation i out = 40ma, (v outnom +1.0) v in 10.0v 0.1 0.25 %/v v in - v out dropout voltage i out = 200ma, v outnom = 5.0v 400 630 mv i out = 200ma, v outnom = 4.0v 400 700 i out = 160ma, v outnom = 3.3v 400 700 i out = 160ma, v outnom = 3.0v 400 700 i out = 120ma, v outnom = 2.5v 400 700 i out = 60ma, v outnom = 2.1v 200 500 i out = 20ma, v outnom = 1.8v 180 300 i q input quiescent current v in = v outnom +1.0v 1.5 3.0 a tcv out temperature coefficient of v out 3 3. tcv out = (v oh v ol ) x 10 6 /(v outnom x temperature). where: v oh is the highest voltage measured over the device te mperature range. v ol is the lowest voltage over the device temperature range. i out = 40ma, 40oc t amb +85oc 100 ppm/oc t r output rise time 10% v outnom to 90% v outnom , v in = 0v to v outnom + 1v, r load = 25 w resistive 150 s
www.austriamicrosystems.com/ldos/as1360 revision 1.07 5 13 as1360 datasheet ty p i c a l o p e r a t i n g c h a r a c t e r i s t i c s 7 typical operating characteristics v out = 3.3v, i load = 100a, v in = 4.3v, c in 1f (tantalum), c out = 1f (tantalum), t amb = +25oc (unless otherwise specified). figure 3. supply current vs. input voltage figure 4 . supply current vs. load current 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 4 5 6 7 8 9 10 input voltage (v) supply current (a) . 85c 25c 0c -40c 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 0 25 50 75 100 125 150 175 200 load current (ma) supply current (a) . 85c 25c 0c -40c figure 5. supply current vs. temperature figure 6. output voltage vs. input voltage 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 -40 -20 0 20 40 60 80 100 120 140 temperature (c) supply current (a) . 3.296 3.298 3.3 3.302 3.304 3.306 3.308 3.31 3.312 4 5 6 7 8 9 10 input voltage (v) output voltage (v) . 85c 25c 0c -40c figure 7. output voltage vs. load current figure 8 . dropout voltage vs. load current 3.23 3.24 3.25 3.26 3.27 3.28 3.29 3.3 3.31 0 10 20 30 40 50 60 70 80 load current (ma) output voltage (v) . 85c 25c 0c -40c 0 100 200 300 400 500 600 700 0 20 40 60 80 100 120 140 160 load current (ma) dropout voltage (mv) . 85c 25c 0c -40c
www.austriamicrosystems.com/ldos/as1360 revision 1.07 6 13 as1360 datasheet ty p i c a l o p e r a t i n g c h a r a c t e r i s t i c s figure 9. load regulation vs. temperature figure 1 0. line regulation vs. temperature 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 -40 -15 10 35 60 85 temperature (c) load regulation (%) . v in = 10v v in = 4.3v v in = 6v -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 -40 -15 10 35 60 85 temperature (c) line regulation (%/v) . 150ma 40ma 1ma / 10ma figure 11. output voltage vs. input voltage; dropo ut figure 12. startup rise time 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 input voltage (v) output voltage (v) iload = 40ma iload = 100ma 50s/div vout 500mv/div figure 13. startup delay note: all graphs where measured without additional heat s inks, with the sot23 package mounted on a 4layer pcb. adding addi tional heat sinks will improve performance in high temperature enviroment. 500s/div vin 1v/div vout 1v/div
www.austriamicrosystems.com/ldos/as1360 revision 1.07 7 13 as1360 datasheet d e t a i l e d d e s c r i p t i o n 8 detailed description the as1360 is a lowpower, positive voltage regulat or designed in such a way that the supply current i s independent from the load current. the device regulates the output by comparing the output voltage to an internally generated reference volta ge. the device is available in fixed output voltages of 1.8, 2.5, 3.0, 3.3, and 5.0v. fixed output voltage s are generated using the internal resistor divider network (see figure 1 on page 1) . short circuit/overcurrent protection the as1360 monitors current flow through the pchan nel mosfet. in shortcircuit or overcurrent conditi ons, the integrated shortcircuit protec tion circuitry will limit output current. note: thermal dissipation according to absolute maximum ratings on page 3 must be considered.
www.austriamicrosystems.com/ldos/as1360 revision 1.07 8 13 as1360 datasheet a p p l i c a t i o n i n f o r m a t i o n 9 application information figure 14. as1360 typical application diagram power dissipation power dissipation (pd) of the as1360 is the sum of the power dissipated by the pchannel mosfet and th e quiescent current required to bias the internal voltage reference and the internal pow er amplifier, and is calculated as: pd (p-channel mosfet) = (v in - v out )i out (eq 1) internal power dissipation as a result of the bias current for the internal voltage reference and the error amplifier is calculated as: pd (bias) = v in i gnd (eq 2) total as1360 power dissipation is calculated as: pd(total) = pd (p-channel mosfet) + pd (bias) (eq 3) the internal quiescent bias current (2a, typ) is s uch that the pd(bias) term of (eq 3) can be disrega rded and the maximum power dissipation can be estimated using v in(max) and v out(min) to obtain a maximum voltage differential between v in and v out , and multiplying the maxi mum voltage differential by the maximum output curr ent: pd = (v in(max) v out(min) )i out(max) (eq 4) where: v in = 3.3 to 4.1v v out = 3.0v 2% i out = 1 to 100ma t amb(max) = 55oc p max = (4.1v (3.0v x 0.98)) x 100ma = 116.0mw junction temperature the as1360 junction temperature (t j ) can be determined by first calculating the therma l resistance from junction temperaturetoambient t em perature. note: thermal resistance is estimated to be the junction temperaturetoair temperature r f ja , and is approximately 230c/w or 335oc/w (when mounted on 1 square inch of copper). r f ja will vary depending on pcb layout, airflow and ap plication specific conditions. the as1360 junction temperature is determined by ca lculating the rise in t j above t amb , and then adding the increase of t amb : t j = p d(max) x r f ja + t amb (eq 5) from (eq 5), the value of t j can be calculated as: t j = 116.0mw x 230oc/w + 55oc therefore: t j = 81.68oc as1360 +9v alkaline battery gnd 1 3 v in 2v out c out 1f * c in 1f * * tantalum capacitor v out = 3.3v
www.austriamicrosystems.com/ldos/as1360 revision 1.07 9 13 as1360 datasheet a p p l i c a t i o n i n f o r m a t i o n external component selection input capacitor in applications where input impedance is approximat ely 10 w , a 1f capacitor is sufficient for c in (see figure 14 on page 8) . in cases where the as1360 is operated from a batter y, or when there is significant distance between th e input source to the as1360, larger val ues for c in may be required for output stability. note: for values of c out > 1f, the value of c in should be increased to prevent high sourceimpedan ce oscillations. output capacitor in most applications for the as1360, a 1f capacito r (esr > 0.1 w /< 5 w , f res > 1mhz) is sufficient for c out (see figure 14 on page 8) . for improved power supply noise rejection and devic e transient response, larger values can be used for c out . note: for values of c out > 1f, the input impedance must not be so large th at it causes highinput impedance oscillations.
www.austriamicrosystems.com/ldos/as1360 revision 1.07 10 13 as1360 datasheet p a c k a g e d r a w i n g s a n d m a r k i n g s 10 package drawings and markings figure 15. 3pin sot23 marking table 4. packaging code xxxx xxxx encoded datecode
www.austriamicrosystems.com/ldos/as1360 revision 1.07 11 13 as1360 datasheet p a c k a g e d r a w i n g s a n d m a r k i n g s figure 16. 3pin sot23 package
www.austriamicrosystems.com/ldos/as1360 revision 1.07 12 13 as1360 datasheet o r d e r i n g i n f o r m a t i o n 11 ordering information the device is available as the standard products sh own in table 5 . note: all products are rohs compliant. buy our products or get free samples online at icdi rect: http://www.austriamicrosystems.com/icdirect technical support is found at http://www.austriamicrosystems.com/technicalsuppor t for further information and requests, please contac t us mailto:sales@austriamicrosystems.com or find your local distributor at http://www.austriamicrosystems.com/distributor table 5. ordering information ordering code marking description delivery form package as136018t askd hv lowquiescent current ldo, 1.8v ta pe and reel 3pin sot23 as136021t asro hv lowquiescent current ldo, 2.1v ta pe and reel 3pin sot23 as136025t aske hv lowquiescent current ldo, 2.5v ta pe and reel 3pin sot23 as136030t askf hv lowquiescent current ldo, 3.0v ta pe and reel 3pin sot23 as136033t askg hv lowquiescent current ldo, 3.3v ta pe and reel 3pin sot23 as136040t asqv hv lowquiescent current ldo, 4.0v ta pe and reel 3pin sot23 as136045t astq hv lowquiescent current ldo, 4.5v ta pe and reel 3pin sot23 as136050t askh hv lowquiescent current ldo, 5.0v ta pe and reel 3pin sot23
www.austriamicrosystems.com/ldos/as1360 revision 1.07 13 13 as1360 datasheet copyrights copyright ? 19972011, austriamicrosystems ag, tobe lbaderstrasse 30, 8141 unterpremstaetten, austriae urope. trademarks registered ?. all rights reserved. the material herein may not be reproduced, adapted, merged, translated, stored, o r used without the prior written consent of the copyright owner. all products and companies mentioned are trademarks or registered trademarks of their respective compa nies. disclaimer devices sold by austriamicrosystems ag are covered by the warranty and patent indemnification provisio ns 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 freedom of the described devices from patent in fringement. austriamicrosystems ag reserves the rig ht to change specifications and prices at any time and without notice. therefore, prior to de signing this product into a system, it is necessary to check with austriamicrosystems ag for current information. this product is intended for u se in normal commercial applications. applications requiring extended temperature range, unusual environmental requirements, or high reliabi lity applications, such as military, medical lifes upport or lifesustaining equipment are specifically not recommended without additional pro cessing by austriamicrosystems ag for each applicat ion. for shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flo w or test location. the information furnished here by austriamicrosyste ms ag is believed to be correct and accurate. howev er, austriamicrosystems ag shall not be liable to recipient or any third party for any d amages, including but not limited to personal injur y, property damage, loss of profits, loss of use, interruption of business or indirect, special, inci dental or consequential damages, of any kind, in co nnection with or arising out of the furnishing, performance or use of the technical data herein. no obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems ag rendering of technical or oth er services. contact information headquarters austriamicrosystems ag tobelbaderstrasse 30 a8141 unterpremstaetten, austria tel: +43 (0) 3136 500 0 fax: +43 (0) 3136 525 01 for sales offices, distributors and representatives , please visit: http://www.austriamicrosystems.com/contact

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